Answer:
Millipedes have two sets of legs per segment positioned directly under their body, while centipedes have one set of legs per segment positioned on the side of their body.
Here are a few tips to spot the differences: Millipedes have two sets of legs per segment positioned directly under their body. Centipedes have one set of legs per segment positioned on the side of their body. ... Millipedes feast on decomposing plants.
Explanation:
#carryonlearningexplain details all process of phosphorous cycles?
Answer:
The biogeochemical cycle known as the phosphorus cycle describes how phosphorus moves across the Earth's ecosystem. All living things require phosphorus as a necessary nutrient, and it is required for many biological functions including DNA synthesis, energy transmission, and cell division.
Explanation:
The phosphorus cycle has several key steps, including:
Weathering: Phosphorus is present in rocks and minerals, and weathering processes such as erosion and dissolution release it into the soil and water.
Adsorption: Once in the soil, phosphorus can be adsorbed (attached) to clay and organic matter particles, making it less available for plant uptake.
Uptake by plants: Phosphorus is taken up by plants through their roots and used for growth and metabolism.
Animal uptake: Animals consume plants and incorporate the phosphorus into their own bodies for growth and metabolism.
Decomposition: When plants and animals die, their bodies are broken down by decomposers, releasing the phosphorus back into the soil.
Leaching: Some of the phosphorus in the soil can be leached (washed out) into waterways and oceans by rainwater and irrigation.
Deposition: Phosphorus can be deposited into sediments and sedimentary rocks through precipitation of minerals such as apatite.
Human activities: Human activities such as mining, agriculture, and waste disposal can also affect the phosphorus cycle by releasing large amounts of phosphorus into the environment and altering natural processes.
The phosphorus cycle is relatively slow because phosphorus is not readily transformed between different forms and it is mostly stored in rocks and soil, unlike the other elements cycles such as carbon and nitrogen that are more dynamic and have a faster turnover.
Buckthorn is a medium size nonnative shrub species that has been introduced to many wooded areas in Minnesota. It grows rapidly and produces many berries with seeds. Buckthorn blocks light, and crowds out many native plant species, It interferes with habitat and nesting sites for many small animals. This is an example of...
a. random dispersion pattern
b. an abiotic factor having a negative effect of the community in an ecosystem
c. an unintended consequence of adding an organism to an ecosystem
d. the introduction of a species that has added to the health of and diversity of an ecosystem
The addition of buckthorn results into blocking of the light. This is an unintended consequence of adding an organism to an ecosystem. Thus, the correct option is C.
What are the consequence of addition of species?Invasive species is also called as introduced species or alien species which significantly modifies or disrupts the ecosystem in which it colonizes. Such species may arrive in the new areas through various ways such as natural migration, however they are often introduced by the activities of other species such as humans and other higher animals.
Invasive species are capable of causing extinctions of the native plants and animal species, reducing the biodiversity, competing with native organisms for the limited amount of resources, and altering habitats.
Therefore, the correct option is C.
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Scientists use a general process known as the scientific method to ask and answer questions about natural phenomena.
O A hypothesis is a testable statement that proposes an explanation for a set of observations. It leads to predictions that can be tested by an experiment.
O A prediction describes specific results that can be expected if a hypothesis is true.
O A theory is broader in scope than a hypothesis, is supported by a large body of evidence, and generates many new hypotheses.
O A scientific experiment often involves both a treatment and a control, which are alike except for the variable that the experiment is designed to test.
O A variable is a factor that is either manipulated or measured in an experiment.
O A correlation is a quantitative relationship between variables.
O A review process is in place to make sure that no bias has skewed the results of an experiment.
The scientific method is a method of problem-solving that is at the heart of biology and other sciences.
The scientific method consists of five fundamental steps and one for feedback: Make a discovery, Pose a query, Create a testable explanation or a hypothesis. on the basis of the hypothesis, make a prediction. Test the prediction.
Iterate: Create fresh hypotheses or forecasts in light of the findings.
All sciences, including chemistry, physics, geology, and psychology, employ the scientific method. Different tests and questions are posed by the scientists in various disciplines. However, they approach questions in the same fundamental way in order to arrive at rational, evidence-based solutions.
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A hypothesis is a testable statement that proposes an explanation for a set of observations. It leads to predictions that can be tested by an experiment. The scientific method is a problem-solving approach that is important to biology and other disciplines.
The scientific method is made up of five basic processes and one for feedback: Make an observation, Ask a question, Make a hypothesis or a tested explanation. Make a forecast based on the hypothesis. Put the prediction to the test.
Iterate: Develop new hypotheses or projections in response to the findings.
The scientific method is used in all fields, including chemistry, physics, geology, and psychology. Scientists from numerous fields provide various exams and questions. However, in order to arrive at reasonable, evidence-based solutions, they address challenges in the same fundamental way.
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Which diagram correctly shows how homozygous alleles are found on homologous chromosomes?
The diagram that correctly shows how heterozygous alleles are found on homologous chromosomes is; Aa ( The first diagram )
Heterozygous alleles are different alleles gotten/inherited from the genes inherited from each parent cell ( i.e. from each parent ). while
A homologous chromosome is a pair of chromosomes containing the same gene sequence, and chromosomal length and possesses the same centromere location in each chromosome in the pair.
Hence we can conclude that The diagram that correctly shows how heterozygous alleles are found on homologous chromosomes is the first diagram ( Aa ).
Classify whether each gene regularly exists in a hemizygous state Regularly hemizygous:
Not regularly hemizygous: Answer Bank agene on chromosome 21 in an individual with Down syndrome a color-blindness gene on the X chromosome in normal human male a transgenic gene inserted into only one chromosome of mouse a color-blindness gene on an X chromosome in normal human female
Regularly hemizygous:
The gene for color blindness on her X chromosome in normal humans. a transgenic gene that is inserted into only one mouse chromosome
Not regularly hemizygous:
A colorblind gene on her X chromosome of a normal human female. A gene on chromosome 21 in people with Down syndrome
The main difference between homozygote and hemizygote is that homozygote is the state in which both alleles are the same in a diploid organism, whereas hemizygote is the state in which only one allele is present. about it. Genes exist as alleles or copies. In general, the gene has two alleles of her.
Females are not considered hemizygous A disease caused by a gene on the X chromosome because females have two copies of the X chromosome and males have only one (hemizygote) (most of which are X-linked recessive genes) primarily affect males.
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Why is bottom trawling damaging to the seafloor?
Answer:
Bottom trawling is damaging to the seafloor because it involves dragging heavy nets across the seafloor, which can disturb or destroy seafloor habitats, such as coral reefs and seagrass beds. This can also lead to a decrease in the abundance and diversity of marine life that lives on or near the seafloor.
Explanation:
A plant converts light energy into chemical energy that is stored in its cells. A rabbit eats the plant and breaks down the nutrients through digestion. The rabbit uses the digested plant material to obtain energy and build new molecules in its cells.
Which shared characteristic of all living things is being described in this example?
Question 5 options:
Metabolism
Cellular organization
Homeostasis
Heredity
Answer:
Heredity
Explanation:
i have no idea
GL
Answer:yes it's Heredity
Explanation:
If scientists were studying the effect of vitamin supplements on kidney disease, which of these would be the variable?
O a. The type of diet each participant eats
O b. Kidney disease
O c. The age of each participant
O d. Changes in blood lipids noted during the study
If scientists were studying the effect of vitamin supplements on kidney disease then the variable would be the b. Kidney disease.
What is the experimental variable in a scientific investigation?The experimental variable in a scientific investigation refers to any issue we have to test in an experiment in order to confirm or reject our working hypothesis, ie. the plausible explanation about the change in the variable due to different outcomes.
The experimental variable in a scientific investigation can be measured through changes in the dependent variable, which is modified by effects on the independent variable under study in the experimental and or observational procedures.
Therefore, with this data, we can see that the experimental variable in a scientific investigation is any variable that is under study and it change, which allows us to test one plausible explanation or hypothesis for such an experiment.
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1. Why do you think global carbon emissions are still rising given that governments around the world are aware that these emissions need to drop?
Global carbon emissions are still rising given that governments around the world are aware that these emissions need to drop because we need energy and the measures to avoid the use of carbon dioxide-generating energies are increasing.
What are sustainable modes of energy production?The expression sustainable modes of energy production is used to denote all types of energies that are able to reduce or maintain the rates of carbon dioxide production worldwide such as solar energy.
Therefore, with this data, we can see that sustainable modes of energy production need to be produced in order to reduce carbon dioxide emissions.
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For pea plants, round is dominant for both traits and wrinkled is recessive and yellow is dominant and green is recessive. If you cross a plant that is homozygous dominant for both traits with a plant that is homozygous recessive for both traits, what are the possible genotypes and the probability of each? What is the probability of each possible phenotype?
If the offspring formed which was a round pea is heterozygous and mated with pea plant with heterozygous genes then there are 3 Probabilities.
Probabilities in genetics:Statistics and probability are closely related, and both have significant scientific applications. Genetics and probability are also extremely strongly intertwined in a similar way. Genetic inheritance rates are only instances of probability.
Terms in Genetics Probability
Alleles: The pairing of a person's genetic material determines their traits. Alleles are the name for this genetic material. The combination of these alleles defines an individual's characteristics, including height, eye color, hair color, and other attributes.
Genotype: A genotype is the particular pairing of alleles that a person inherits and which code for a certain trait.
Phenotype: Regardless of the genotype, the phenotype is the characteristic that results from that genotype. It is the real physical attribute or look.
What is Punnett square?Each potential genotype of the descendent is listed in a Punnett square's tabular representation. Outside of the Punnett square, the genotypes of the parents are typically noted. By examining the alleles in the column and row of each input, it is possible to determine the input for each cell in the table.
If the offspring formed which was a round pea is heterozygous and mated with pea plant with heterozygous genes then there are 3 posibilities.
1. The offspring can be rounded with homozygous genes
2.the round pea with heterozygous genes
3. The wrinkled pea with homozygous genes .
hence by estimating ratio of wrinkled pea from these possibilities you can calculate the % chance of getting a wrinkled pea
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Match the type of molecule that is involved in gene expression with the appropriate description.
A) Structural RNA that links an amino acid to an anticodon--tRNA
B) Contains information to be translated (as codons)--mRNA and Gene
C) Forms part of the enzyme that drives translation-- ribosomal protein and ribosomal RNA.
The transfer RNA is described in the section beginning with the letter A. (tRNA). Transfer RNA is a molecule that has the job of matching an anticodon at the end of tRNA with the amino acid it codes for. The corresponding codon's anticodon is complementary to it.
Statement B) describes both mRNA and genes, and vice versa. A transcript of the DNA sequence is found in the messenger RNA (mRNA) molecule. Genes, on the other hand, are sequences that contain the genetic data required to produce proteins. The translation process needs that information.
Lastly, explanation C) is a component of both ribosomal RNA and protein. They are both components of a ribosome, a substantial and intricate enzyme. The translation is carried out by ribosomes.
Complete question:
Match the type of molecule that is involved in gene expression with the appropriate description.
Types of molecules:
Ribosomal protein
tRNA
Ribosomal RNA
mRNA
Gene
Descriptions:
A) Structural RNA that links an amino acid to an anticodon.
B) Contains information to be translated (as codons).
C) Forms part of the enzyme that drives translation.
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List and describe 3 methods of jellyfish movement
Answer: To swim, the jellyfish opens its bell and then creates jet propulsion by squeezing its bell to a smaller volume. When a jellyfish contracts its body, two vortex rings (doughnuts of water rolling into themselves) are created. The first ring is shed in the wake as the jellyfish moves.
Small regulatory RNA can regulate gene expression by:
Select all that apply.
inhibiting rRNA synthesis.
inhibiting RNA splicing.
degrading RNA transcripts.
inhibiting translation.
altering chromatin conformation.
Small regulatory RNA can regulate gene expression by inhibiting rRNA synthesis. So the correct option (a).
Multiple RNABPs41 work together to regulate RNA by binding to 'core' and 'auxiliary' elements, which are necessary for and modify pre-mRNA processing steps, respectively. Exons and the sequences necessary for their splicing are separated by core splicing elements.
Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) are two important kinds of RNA molecules with regulatory functions, and their dysregulation has been linked to the development and progression of many human cancers.
The CsrB/C (carbon storage sRNA regulatory system)49 and 6S RNA are two well-studied examples of regulatory protein-binding sRNAs.
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Please help and correctly please
Answer:
In contrast, the ribonucleic acids or RNA typically consist of uracil, guanine, adenine, and cytosine. The thymine place is replaced by uracil in RNA. So in RNA, the adenine has a complementary pair with the uracil. So due to this fact, RNA has uracil, not DNA, and thus the statement is wrong
Each phosphodiester linkage in DNA or RNA includes a phosphate joined by covalent bonds to
(a) two bases
(b) two sugars
(c) two additional phosphates
(d) a sugar, a base, and a phosphate
(e) a sugar and a base
Option b is Correct. In DNA or RNA, a phosphate is connected to two sugars by covalent bonds to form each phosphodiester linkage.
The 5' carbon of one sugar (deoxyribose or ribose) and the 3' carbon of another sugar molecule are joined to form the phosphodiester linkage in DNA or RNA (deoxyribose or ribose). Consequently, two sugar molecules form the phosphodiester bond.
The 3' carbon atom of one sugar molecule and the 5' carbon atom of another, deoxyribose in DNA and ribose in RNA, are linked by a phosphodiester bond in DNA and RNA. Over two ester linkages, two pentoses with five carbons each create strong covalent bonds with the phosphate group.
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using sunflower plants to naturally remove heavy toxins from contaminated soil is an example of
Answer:
Phytoremediation.
Explanation:
which of the following is a benefit gained from learning how to sequence dna?
a) identification of faulty genes
b) development of treatments for diseases
c) modification of crops to increase yields
d) understanding of our evolutionary history
e) All of the answer choices are benefits gained from DNA sequencing.
The correct answer is option e (All the mentioned statements are benefits gained from the technique DNA sequencing)
DNA sequencing uses a variety of biochemical techniques to establish the nucleotide order (A, G, C, T). Any gene sequence can be used to determine the purpose of the proteins that are made by that gene. Additionally, if a mutation occurred in the DNA, the changed base can also be recognized. This allows for easy identification of the defective genes that cause any disease in any organism using DNA sequencing.
Additionally, DNA sequencing can be used to identify and treat any disease. The researcher can control that gene or a specific portion of that gene for any potential treatment by knowing the relevant mutation or variant.
Additionally, it enables crop customization to boost production. The function of any gene can also be ascertained by knowing its sequence. Genetic engineering can control a number of genes that cause illness in plants to boost production.
Given that DNA sequencing has previously been used to anticipate the whole human genome sequence, sequencing techniques also aid in our understanding of evolution. It can be used to determine the order of other organisms as well as the sequence of their ancestors.
The evolutionary relationship between organisms can be anticipated by analyzing their evolutionary sequences.
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Evaluate how advanced nursing education and lifelong learning can help improve patient outcomes. Include current research that links patient safety outcomes to advanced degrees in nursing. Based on some real-life experiences, explain whether you agree or disagree with this research. How can the application of the Christian Worldview help improve patient outcomes?
Answer:
Research has shown that advanced nursing education and lifelong learning can have a positive impact on patient outcomes. Studies have indicated that nurses with advanced degrees have better patient safety outcomes than those without. For example, a study published in the Journal of Nursing Administration found that nurses with a Bachelor of Science in Nursing (BSN) or higher had a lower rate of patient falls than those without.
I agree with this research, as I have seen firsthand the difference that advanced nursing education can make in patient outcomes. In my experience, nurses with advanced degrees have better knowledge of evidence-based practice and are able to better assess and respond to patient needs. They also have better communication skills and are more likely to collaborate with other healthcare professionals.
The application of the Christian Worldview can also help improve patient outcomes. The Christian Worldview emphasizes compassion and caring, and this can be applied to the nursing profession in various ways. For example, nurses can use the Christian Worldview to provide holistic care, which includes spiritual care, as well as physical and emotional care. Nurses can also use the Christian Worldview to provide comfort and support to patients and their families during difficult times. Additionally, the Christian Worldview can help nurses to prioritize patient safety and provide quality care.
Explanation:
Advanced nursing education expresses that the entire and complete methodology of learning that can significantly have a positive impact on patient outcomes.
What is advanced nursing education?Advanced nursing education prepares nurses to perform a wide variety of tasks in patient care and the broader healthcare system. Some examples of duties performed by APRNs include: Assessing patient symptoms and medical histories and developing diagnoses.
According to the context of this question, major studies and research have indicated that nurses with advanced degrees have better patient safety outcomes than those without.
For example, a study published in the reputed Journal of Nursing Administration searches that nurses with a degree in Bachelor of Science in Nursing (BSN) or higher had a lower rate of patient falls than those without occupying them in their careers.
Therefore, advanced nursing education expresses that the entire and complete methodology of learning that can significantly have a positive impact on patient outcomes.
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Diffusion of a substance across the cell membrane is influenced by all of the following except:
A. the presence of the membrane channels.
B. concentration gradient.
C. lipid solubility.
D. hydrolysis of ATP.
E. the charge on the ion.
Diffusion of a substance across the cell membrane is influenced by all of the following, except hydrolysis of ATP
When a chemical moves from an area of higher concentration to one of lower concentration, this process is called diffusion. Diffusion happens spontaneously and without the use of energy. Since liquids and gas particles are able to travel randomly from one area to another, diffusion occurs in these media.
The gradient of the substance's concentration, together with the substance's size, charge, and the presence of transport proteins in the membrane, can all affect how well an object diffuses across a cell membrane. Conversely, the hydrolysis of ATP is an energy-intensive process that is utilised by cells for a variety of purposes, including active transport.
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Which of the following is a function of the placenta? Check all that apply.
A. Allows the building blocks of proteins to diffuse from maternal to fetal blood
B. To prevent gestational diabetes, the placenta blocks glucose from passing from the fetus to the mother
C. Helps the fetus dispose of metabolic waste that would normally be excreted by its own kidneys
D. Allows for gas exchange
E. Transfers stem cells from the mother's bone marrow to the fetal tissue
The following are a function of the placenta:
The placenta allows the building blocks of proteins to diffuse from maternal to fetal blood.The placenta helps the fetus dispose of metabolic waste that would normally be excreted by its own kidneys.The placenta allows for gas exchange.The placenta, commonly called the afterbirth, is a disc of tissue that connects the mother's uterus to the umbilical cord and ultimately serves to deliver nutrients and oxygen to the fetus.
The placenta usually separates from the uterine wall after birth. In placenta accreta, part or all of the placenta remains firmly attached to the uterus. This condition occurs when a blood vessel or other part of the placenta penetrates too deeply into the uterine wall.
Functions of the placenta include:
Provides your baby with oxygen and nutrients. It removes harmful waste products and carbon dioxide from your baby. It secretes hormones that help the baby grow.
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which one of the followiwhich one of the following statement is accuarate
ng statement is accuarate
Answer:
the particle's mass will increase as it approaches the speed of light
Explanation:
the statement which is accurate for the object approaching the speed of light
The mass of object as observed by a moving observer is given by m=1−(cv)2m0.where m0 is the rest mass of the object.Hence, as speed approaches the speed of light, that is, as v→c, m→∞
speed of light, the rate at which light waves move through various substances. Specifically, the speed of light in a vacuum is presently calculated to be 299,792,458 metres per second.
One of nature's basic constants is the speed of light. Its importance extends far beyond its use in characterising an aspect of electromagnetic waves. It acts as the universe's only limiting velocity, setting an upper limit on both the speed of all material particles and the speed at which signals can travel. The speed of light (c) acts as a constant of proportionality in the well-known relativity equation, E = mc2, connecting the heretofore dissimilar ideas of mass (m) and energy (E) (E).
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What element results if two protons and two neutrons are ejected from a radium nucleus?
As a result, when two protons and two neutrons are ejected from the radium nucleus, the ensuing nucleus is radon.
How does radon affect people?The radioactive particles in radon gas might become lodged in your lungs when you breathe it in. These radioactive particles raise the possibility of lung cancer over time. Prior to the onset of health issues, years may pass. According to Environmental Protection Agency (EPA), radon is responsible for 21,000 lung cancer deaths annually.
Why is radon dangerous and what is it?Lung cancer can be brought on by the naturally occurring radioactive gas radon. Inert, colorless, and odorless describe radon gas. Trace levels of radon are present in the atmosphere naturally. In the open air, radon spreads swiftly and often presents little health danger.
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Which of the following organs is NOT required for the complete synthesis of activated vitamin D?
1) Skin
2) Liver
3) Kidney
4) Small intestine
Small intestine is NOT required for the complete synthesis of activated vitamin D
A derivative of the steroid cholesterol is converted in the skin to a form of vitamin D3 when sunlight is present. Cholecalciferol is transformed by the liver into calcidiol, which is then changed by the kidneys into calcitriol (an activated vitamin).
The active form of vitamin D (calcitriol), is produced by the skin, liver, and kidneys and aids in preserving healthy levels of calcium and phosphorus in the blood.
When exposed to ultraviolet light from the sun, a cholesterol-derived molecule in the skin is transformed into vitamin D.
To become calcitriol, vitamin D goes through additional chemical alterations, first in the liver and subsequently in the kidneys which keeps the levels of calcium and phosphorus in the blood regular, calcitriol acts on the colon, kidneys, and bones.
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Plant cells produce hormones that affect plant growth and behavior. Cytokinins and auxins are two important types of plant hormones. Together, these hormones control cell division in
the plant. If cytokinin is high and auxin is low, the plant produces stems. When auxin is high and cytokinin is low, roots grow.
Plant hormones travel around plants in vessels called xylem. Hormones also move from cell to cell in plants by diffusion or active transport. Where are hormones produced in animals,
and how are they transported throughout the body?
A. Animal hormones are produced in endocrine glands and travel through the blood.
B. Animal hormones are produced in lymph nodes and travel through the lymphatic system.
C. Animal hormones are produced inside the bones and travel through the nervous system.
D. Animal hormones are produced in sweat glands and travel through the skin.
'Animal hormones are produced in the endocrine glands and travel through the blood'.
What are hormones?
Hormones are organic chemical compounds produced by the endocrine glands that are released into the bloodstream and act as messengers, traveling to different parts of the body to regulate various bodily functions. Hormones are involved in processes such as metabolism, growth and development, tissue function, sexual function and mood.
They travel through the blood because it is the most efficient way to reach the target cells in the body. The hormones have to interact with the target cells in order to have an effect, so they need to be able to reach the target cells in the quickest and most effective way possible.
Hence, Option A is correct.
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Which of the following cells do not undergo telomere shortening as a result of mitosis?
O embryonic stem cells O cancer cells O somatic cells
Embryonic cell and cancer cell do not undergo telomere shortening as a result of mitosis.
Human blastocysts, an early stage of the growing embryo lasting from the fourth to the seventh day after fertilisation, include embryonic stem cells (ESCs) in the inner cell mass. They vanish after the seventh day and start to form the three layers of embryonic tissue in a normal development.
These stem cells are pluripotent, which means they can divide to create other stem cells or any form of cell in the body. Embryonic cells can be employed to rebuild or treat damaged tissue and organs because of their adaptability.
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37. Which one of the ff is not direct cause of maternal death ? A. Hemorrhage C. Infection B. Cardiovascular disease D. Preeclampsia
B. Cardiovascular disease is not a direct cause of maternal death. It is a chronic health condition that can increase the risk of maternal death, but it is not a direct cause of maternal death. Hemorrhage, infection and preeclampsia are all direct causes of maternal death.
LIMITED TIME!! HELP!!!!
In the grass species Anthoxanthum odoratum, some of these plants
live near mines where the soil has become contaminated with
metals. Meanwhile, neighboring plants don't live in polluted soil. The
two types of plants are close enough that they could potentially
fertilize each other. However, the two types of plants have evolved to
flower during different seasons. This is an example of _______ isolation.
Select one:
geographic
temporal (time)
genetic
behavioral
Answer:
temporal (time)
Answer:
temporal (time) is the answer I believe
LIMITED TIME, HELP URGENTLY!!!!!!!!!!!
Ginkgo trees are native to Asia but are now cultivated widely in North
America.
Thus, they are divided into two geographically separated groups.
According to the biological species concept, these populations
could be classified as belonging to the same species if they ______
Select one:
O can produce fertile offspring
O look like each other
O cannot reproduce with each other
O for fruits that smell the same
Select a region of the world and explain how its latitude, elevation, geographical features, and relationship to winds and ocean currents determine its climate.
We are attempting to explain how Ecuador's latitude, elevation, geographic characteristics, and interaction with winds and ocean currents affect its climate.
Geographical Effects:For every 100 meters of elevation, the temperature typically drops by 1°C. In comparison to land, oceans heat up and cool down far more slowly. This means that, at the same latitude and elevation, seaside areas are warmer in the winter and more laid-back in the summer.
By moving warm water and precipitation from the equator to the poles and cold water from the poles back to the tropics, ocean currents function much like a conveyor belt. In order to balance out the uneven distribution of solar energy reaching the Earth's surface, ocean currents govern the global climate.
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Many whole families died when the plague hit Europe. Since the bite of a flea was the main transmission of plague, how did it MOST likely spread to the rest of the family?
A.
Every person would have to be bitten by an infected flea.
B.
The plague was passed through contaminated water and sewage.
C.
If the family were in close contact with the sick person’s boils, they could get the bacteria.
D.
If the plague had spread to the lungs and a person coughed, it could spread to others.