Answer/ Explanation:
The respiratory system works to humidify incoming air, thereby causing the air present in the alveoli to have a greater amount of water vapor than atmospheric air. Alveolar air contains a greater amount of carbon dioxide and less oxygen than atmospheric air.
A few other reasons are....Alveolar air is partially replaced by atmospheric air during each breath
Oxygen is constantly absorbed into the blood from alveoli
Carbon dioxide is diffused into alveoli from blood
As air enters respiratory passages it becomes humidified diluting the inspired gases' partial pressures
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what part of the plant holds the most water
Answer:
Stem
Explanation:
Main Stem - Holds up the plant and carries water throughout the plant. Secondary Stem - A stem that grows out from the main stem and holds the leaves. Chlorophyll - The green matter that is needed to make food for the plant.
Answer:
vacuoles
Explanation:
Plant cells are unique in that they have a large central vacuole. A vacuole is a small sphere of plasma membrane within the cell that can contain fluid, ions, and other molecules. Vacuoles are essentially just large vesicles. They can be found in the cells of many different organisms. However, plant cells characteristically have a large vacuole that can take up anywhere from 30% to as much as 90% of the total cell volume.
How do sea otters keep from drifting apart while they sleep.
Answer:
They hold each other's cute hands!!! :3
Explanation:
Does this help you???
During mitosis, a single cell divides to produce two daughter cells. What
must happen in the original cell so that each of the daughter cells has a
compiate set of chromosomes?
Answer:
DNA replication
Explanation:
DNA replication creates duplicates of the existing chromosomes, so that when the cell splits to create two new cells, they will each have their own set of DNA.
Which is a benefit of refrigeration?
-increases the need for salt
-decreases the pollution in the air
-decreases the growth of bacteria
Answer:
the third one because it slows down the growth of bacteria, its why we need refrigerators
Answer:
the third one because it slows down the growth of bacteria, its why we need refrigerators
Explanation:
The digestive system includes the organs that______the food, transport the ingested material, digest the material into smaller usable components, ______the necessary digested nutrients into the bloodstream, and expel the waste products from the body.
Answer:
1. ingest
2. absorb
Explanation:
the first step is ingestion, the act of taking in food. This is followed by digestion, absorption, and elimination also known as sending waste out of the body.
Hope this helps.
How is the goal of evolutionary classification different from linnaean classification.
Answer:
The goal of evolutionary classification
Explanation:
The goal of evolutionary classification is to group species into larger categories that reflect lines of evolutionary descent, rather than overall similarities. The goal of linnaean classification is to group species into larger categories based on physical characteristics
Which of the following correctly compares the desert and the swamp environments correctly?
A desert is hotter than a swamp because it receives more sunshine.
A desert is wetter than a swamp because of its proximity to water bodies.
A swamp is hotter than a desert because it is closer to the equator.
A swamp is less humid than a desert because of its higher elevation.
Please help :D
Answer:
A desert is hotter than a swamp because it receives more sunshine.
Explanation:
hope this helps
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Answer:
A desert is hotter than a swamp because it receives more sunshine.
Explanation:
Over the past 100 years, Earth ’s average surface temperature has gradually increased, causing minor climate changes in areas across the world. Scientists are worried that these climate changes will lead to the extinction of many species.
Briefly explain “why fast climate change would cause extinction.”
Answer:
Fast climate change would alter the environment and ecology making it difficult to survive then extinction
Explanation:
When the climate change becomes fast there will not be enough time for adaptation and survival rate will nosedive leading to extinction of species
How many single chromosomes are in a human zygote? Question 7 options: 23 46 64 48.
Answer:
46, i thinks
Explanation:
HELPP ASAPPwhat are the lasting impact of bottleneck effect
Answer:
In turn, a population bottleneck reduces the number of alleles in the gene pool, resulting in less genetic diversity for that population or species in the long term.
Explanation:
What is the order of phases in mitosis? Question 15 options: Prophase, Metaphase, Anaphase, Telophase Telophase, Cytokinesis, Metaphase, Anaphase Prophase, Telophase, Anaphase, Metaphase Metaphase, Interphase, Anaphase, Telophase.
The steps of mitosis are in the order of prophase, metaphase, anaphase, telophase.
What are mitosis and its four stages?Mitosis is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei.
Mitosis comprises four basic phases: prophase, metaphase, anaphase, and telophase. These phases occur in this strict sequential order, and cytokinesis - the process of dividing the cell contents to make two new cells - starts in anaphase or telophase. The mitotic phase is a relatively short period of the cell cycle. It alternates with the much longer interphase, where the cell prepares itself for the process of cell division. Interphase is divided into three phases: G1 (first gap), S (synthesis), and G2 (second gap).
Thus, the order of phases in mitosis is in the order of prophase, metaphase, anaphase, telophase.
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Which two human body systems need to coordinate to move food through your body?.
Answer:
The Digestive System absorbs nutrients from food and delivers them to the bloodstream, where the Circulatory System transports them to their destination. Filters waste from meals and transports it through the intestines and out of the body.
Explanation: Answer above
What type of cell transport is shown in the figure below?
Facilitated diffusion
Active transport
Endocytosis
Simple diffusion
The type of cell transport which is shown in the figure in question is Facilitated diffusion. The diffusion in this transport is carried out with the help of a protein such as carrier protein or channel protein. Thus, the correct option is A.
What is Facilitated diffusion?
Facilitated diffusion is a type of diffusion where the movement of solute and solvent particles takes place from the region of higher concentration to the region of lower concentration.
The cell membrane is selectively permeable in nature as it allows the movement of selected substances through it. The molecules which are impermeable such as large, charged polar molecules cannot cross the membrane on their own and hence requires a protein which facilitates their movement. Thus, for this purpose the carrier and channel proteins which are present in the membrane facilitate this diffusion of substances.
Therefore, the correct option is A.
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How are the vacuoles different in plant and animal cells
Answer:
vacuoles in plants provide a rigid structure for the plant cell
in animals,it just stores the waste materials and stuff.
Why did Sienna shift her position on the gymnasium floor? Thermal energy was transferred from the gymnasium floor to her skin. Her skin and the gymnasium floor reached thermal equilibrium. Thermal energy was transferred from the air to her skin. Her skin and the surrounding air reached thermal equilibrium.
Answer: Her skin and the gymnasium floor reached thermal equilibrium.
Explanation:
Bacteria can reproduce quickly by means of binary fission. Because of this, after binary fission....
A) the offspring will have traits of both parents.
B) there is genetic variation among the offspring.
C) all the offspring will be genetically identical.
D) none of the offspring will be genetically like the parents.
PLEASE HELP
Answer:
option C) All the offspring will be genetically identical
Answer:
yoo u added me as a friend ik this isnt an answer srry
Explanation:
Please help!!! I’ll give thanks and brainliest
Answer:
d
Explanation:
how to determine if a molecule has a dipole moment
Answer:
Explanation:
The larger the difference in electronegativity between the two atoms, the more electronegative that bond is. To be considered a polar bond, the difference in electronegativity must be large. The dipole moment points in the direction of the vector quantity of each of the bond electronegativities added together.
Cell having two copies of each type of chromosome is called
Answer: Diploid means you have two of each type of chromosome.
Explanation:
Diploid is the term that refers to the number of each type of chromosome that an organism has. And diploid specifically means every cell in that organism has two copies of each type of chromosome.
Why does a phospholipid on the cytoplasmic side of the cell membrane rarely flip to the extracellular side if both environments are polar?.
Which has the greatest number of mitochondria a blood, epidermal, cardiac, or nerve cell.
Answer:
Cardiac cells
Explanation:
Explain the internal structure of mid layer of a leaf
Answer:
Structure of a leaf
The cuticle helps retain water inside the leaf cells. The epidermis houses the guard cells which regulate the movement of water into and outside the cell. Guard cells do so by controlling the size of the pores also called stomata. Mesophyll: This forms the middle layer of the leaf.
Explanation:
Humans are ____because we must consume other life forms for energy. autotrophs or heterotroph?
Answer: heterotrophs
Explanation:
Since we consume things
Incineration is one solution to reduce the volume of municipal solid waste. Municipal solid waste can be used to produce energy at waste-to-energy plants. Based on the data in the graphs, which of the following materials would be best suited for incineration to reduce total volume, produce energy, and have minimal release of air pollutants?.
Wood materials would be best suited for incineration to reduce total volume and produce energy. They have minimal release of air pollutants.
What are wood materials?Wood materials refer to all materials and chemical substances obtained from the growth of higher plants (i.e. trees).
These wood materials are the most suitable to be incinerated in terms of the generation of calories (energy).
Wood materials also are suitable in ecological terms due they release a minimal amount of contaminants into the atmosphere.
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Which situation is most likely to result in a mutation that is passed on to an offspring?
A- ultraviolet radiation causing skin cancer
B- a longtime smoker developing cancer in the lungs
C- exposure to a chemical that affect cell formation
D- exposure to a chemical that affects the nervous system
Answer:
C- exposure to a chemical that affect cell formation
Explanation:
Hope this helps
The situation that is most likely to result in a mutation that is passed on to an offspring is exposure to a chemical that affects cell formation. The correct option is C.
What is mutation?A mutation is changing or modification in the nucleic acid or DNA sequence of a person. This is a natural process that occurs due to mutagens.
Mutation can also be artificially induced to bring out changes in the gene sequences for specific reasons. An example is an aneuploidy is a condition of the presence of more or less number of chromosomes than normal. For example, there are 45 or 47 chromosomes are present.
There are different types of mutations somatic mutation occurs in the body cell and chromosomal mutation occurs in the structure of chromosome coin mutation changing the nucleotide.
Therefore, the correct option is C. exposure to a chemical that modifies cell formation.
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According to the key above, which characteristics are necessary to identify a female aedes mosquito.
1. Antennea, palps, and proboscis
2. palps, abdomen tip, and scales and legs
3. eyes, scales on legs and abdomen tip
4. pals, abdomen tip and wings
The characteristics to identify female aedes mosquito are palps, abdomen tip, and scales and legs
Female Aedes mosquito?Female Aede mosquito is a yellow fever mosquito, is a mosquito that can spread dengue fever,and yellow fever viruses, and other disease agents. The mosquito are identified by black and white markings on its legs and a marking at the the upper surface of its thorax. They are small in sizes and have patterns of light and dark scales on the abdomen and thorax which alternate light and dark bands on the legs.
Therefore, The characteristics to identify female aedes mosquito are palps, abdomen tip, and scales and legs.
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The cell membrane is described as being fluid because:
A. the phosphate groups move between fatty acids.
B. the membrane lets materials pass through it.
C. the fatty acid chains are inside it.
D. the phospholipids move from side to side.
Answer:
B. the membrane lets materials pass through it.
Since the cell membrane is semi permeable in nature.
the membrane lets materials pass through it.
Enzymes are needed to digest food correctly. Which cell part needs to be functioning correctly for the enzymes to be present?
A. Lysosome
B. Cell wall
C. Vacuoles
D. Ribosomes
Answer: d ribosomes
Explanation: Ribosomes help make protein which helps make enzymes
What is the difference between a benign tumor and a malignant tumor? View Available Hint(s)for Part A Benign tumors will not kill you; malignant tumors will. A benign tumor is a mass of essentially abnormal cells; a malignant tumor is an abnormal mass of essentially normal cells. Benign tumors do not metastasize; malignant tumors do. Benign tumors metastasize; malignant tumors do not.
Answer:
These cells can form a mass called a tumor. A tumor can be cancerous or benign. A cancerous tumor is malignant, which means that it can grow and spread to other parts of the body. A benign tumor means that the tumor can grow, but it will not spread.
Results of Mitosis: Select ALL that apply
cells are identical
cells are diploid
Cells are haploid
cells are not identical
Answer:
A - Cells are Identical
B - Cells are diploid
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