Answer:
I deceided to do the project with fresh water from my creek in the backyard. I was hoping to get some living organisms in the water when i scooped it up.The first week there wasnt many changes i did notice the water was turning slightly a different color but no major changes. The secound week my water was more of a green color and not as much brownish clear. There was also some green stuff growing which i think that was alge.The third week my water was all the way green and i noticed there was some stuff floating in the water but i dint see any living organisms. There was also more alge in it than last time.
Explanation:
Some spelling is wrong but overall i got a good grade on this i hope this can help :)
Which animal phylum was the first to develop a dorsal nerve cord a backbone?
Answer:
Chordates?
Explanation:
which of the following best explains why top predators can have up to 60 times as much of persistent organic pollutants as their prey and up to 600 times as much of the pollutants as producers ?
This is because persistent organic pollutants accumulate in the body fat of living organisms and increase in concentration as they move up the food chain.
What is Persistent organic pollutants?These are organic compounds that are stable and do not degrade easily. They are usually harmful and accumulate in the body fat of organisms.
They are also known to increase in concentration as they move up the food chain which is why predators have more of them.
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roots of trees slows down the breaking of rocks ture or false
Answer: true
Explanation: as roots of the plants grow deep it crushes the rocks causing a mechanical weathering process
Why are invasive species considered a threat to native wildlife?
Answer:
they can consume all the native prey and have few predators.
Explanation:
what is the causing the disorder of tachycardia
Answer:
Abnormally Fast heart rates that could be caused by other underlying diseases
Explanation: From medical education website.
Why does DNA need to replicate in our cells
Here is a Answer to your question:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
I am sorry if this was not helpful
Hope this was helpful
DNA also known as Deoxyribonucleic Acid is a double stranded macromolecule. The two strands of DNA are complementary to each other. For replication, the DNA double helix opens at one end, making the two strands free to which new strands begin to form and the process continues in a sequence for the whole length of the DNA.
Hope this helpsWhat is the relationship between the curve seen in the graph and the environmental health of the oceans?
An increased population will result in the improved environmental health of the oceans due to more scientists inventing better technologies.
An increased human population size means that the ocean's resources will be used more efficiently.
As the population goes up, the oceans are more likely to be used as a habitat for humans.
As the population increases, more demands are put on the ocean to support human life.
Answer:
As the population increases, more demands are put on the ocean to support human life.
Explanation:
Many countries rely on the ocean for transport and as food sources. Over fishing has continuously been a growing problem as more and more fish are required to sustain populations as well as support more gourmet markets. A higher population will also lead to higher trade rates as more materials that aren't available in one country will need to be imported from others.
What is one disadvantage of using solar system?
A. Solars panels are very inexpensive
b. Solar panels work well only in sunny areas
C. Solar energy is available only in the summer
D. Solar energy produces greenhouse gases
Answer:
the answer is b
Explanation:
if the sun isnt shining solar energy does not collect in the panels
describe five different breath sounds that may be heard when you check a client's respiration
1. Rales. Small clicking, bubbling, or rattling sounds in the lungs. They are heard when a person breathes in (inhales). They are believed to occur when air opens closed air spaces. Rales can be further described as moist, dry, fine, or coarse.
2. Rhonchi. Sounds that resemble snoring. They occur when air is blocked or air flow becomes rough through the large airways.
3. Stridor. Wheeze-like sound heard when a person breathes. Usually it is due to a blockage of airflow in the windpipe (trachea) or in the back of the throat.
4. Wheezing. High-pitched sounds produced by narrowed airways. Wheezing and other abnormal sounds can sometimes be heard without a stethoscope.
5. crackles (a high-pitched breath sound)
Look at this food chain. What would happen if the
salmon were overharvested?
The salmon is a key player in the food web whose removal may cause an imbalance in the whole ecosystem.
What is a food web?A food web is a graphical diagram representing all connections between organisms in a given ecosystem.
Salmon represent the food for different types of animals in a food web, thereby their removal may cause serious harm to the balance of the ecosystem.
Salmon fish is a tertiary consumer because they eat herring which in turn eat zooplankton that eats phytoplankton.
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Can anyone tell me the answer for these
Based on the chart of temperature and the amount of rainfall, it is observed that rainfall is highest in the tropical rainforest while the highest and lowest temperatures are found in desert and tundra respectively.
What are biomes?Biomes are large area of land whose characteristics are influenced by various abiotic factors such as temperature, amounts of precipitation, pH, light as well as biotic factors such as plants and animals as well as microorganisms.
The major biomes of the world include:
tropical rainforest coniferous forest temperate grassland deserts tundradeciduous forestsFrom the chart, the amount of rainfall is highest in the tropical rainforest while the highest and lowest temperatures are found in desert and tundra respectively.
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PLEASE HELP WITH THIS
Answer:
by operating
Explanation:
this by opearating and remove the area tha cancer occur
How have hominid skulls changed over time? What are some of the reasons for those
changes?
Answer:
The change from the oblong skull and protruding face of ancient humans (right) to the modern rounder skull and retracted face is associated with a sharper bend in the floor of the brain case (lower left), thought to be caused by increased brain size.
Explanation:
Give brainlist me please
The change from the oblong skull and protruding face of ancient humans (right) to the modern rounder skull and retracted face is associated with a sharper bend in the floor of the brain case (lower left), thought to be caused by increased brain size.
A red blood cell has a diameter of about 7 micrometer. a microscope of resolving power 240nm ,can it resolve the details of the red blood cell of size 7 micrometer
Yes, it resolve the details of the red blood cell of size 7 micrometer because the microscope has more than 30 times magnification power.
What is magnification?Magnification is the ability of a microscope to produce an image of an object at a scale larger (or even smaller) than its actual size so we can conclude that it resolve the details of the red blood cell of size 7 micrometer because the microscope has more than 30 times magnification power.
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Which material would most likely contribute to the formation of humus?
A.
basalt
B.
granite
C.
grass
D.
salt
Answer:
Encyclopedic entry. Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up.
what is the dominant phase in hydra ?
A) medusa
B) polyp
polyp should be the answer
can any mountain have a volcano erupt from it?
Answer:
no
Explanation:
Can any mountain have a volcano erupt from it? The easiest answer here is no. However some mountains are volcanoes (Mt Kilimanjaro, Mt Etna….), they can definitely erupt if active or re activated.
name the bacteria found in the root nodules of leguminuos plant
Answer:
Rhizobium is a genus of bacteria associated with the formation of root nodules on plants. These bacteria live in symbiosis with legumes.
Explanation:
Two animals of different species would be least likely to
A) produce fertile offspring
B) have similar body structures
C) consume the same food
D) live successfully in the same
habitat
Answer:
A) produce fertile offspring
Explanation:
YES NO (c 10. Can a mother with type B blood have a child with type A blood? Explain. In
Why is an ecosystem with higher levels of biodiversity more stable than an ecosystem with lower levels of biodiversity?
O because species are more adaptable
O because they are better able to withstand stresses like disease or climate change
because changes affect every species the same way
because species are constantly replacing one another
An ecosystem with higher levels of biodiversity is more stable than another with lower levels because they are better able to withstand stresses like disease or climate change.
What is biodiversity?The term biodiversity refers to all of the variations (both genetic and phenotypic) in a given population.
Biodiversity is a fundamental subject to maintaining the equilibrium (homeostasis) of the whole ecosystem.
Higher biodiversity allows populations to face environmental changes such as diseases or climate change.
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Which cells reduce cell mediated immune response?
Answer:
Natural Killer Cells
Explanation:
Also known as NK cells
Answer:
Regulatory T cells (Tregs)
Can somebody help please
Explanation:
what role did the south africa women play against the violation of human rights the 1950s to 1960s
22. There are several substances in blood that are not filtered in the glomerulus. What are these
substances? What prevents them from being filtered out? (Hint: think about the type of
capillary makes up the glomerulus.)
Large molecules such as blood cells, albumins, and platelets are not filtered though the glomerulus.
What is glomerular filtrate?The glomerular filtrate refers the fluid that is produced as as result of filtration of blood by the glomerulus.
The glomerulus is a structure found in the kidney which helps to filter unwanted substances out of the blood.
Large molecules such as proteins and blood cells are not filtered though the glomerulus.
Therefore, blood cells, albumins, and platelets are not filtered though the glomerulus.
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At a deep-ocean vent in the Eastern Pacific, the giant tube worms make up which of the following? Select all that apply. a. population b. part of a community c. part of a ecosystem
The giant tube worms make up the following:
PopulationPart of a communityPart of an ecosystemWhat is an Ecosystem?This consists of all the organisms and the physical environment with which they interact.
In an ecosystem, there is the population of organisms which live there together with various communities which was why all of the above were chosen.
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What percentage of calories that you take in every day are consumed by your brains activity?
Answer:
your brain consumes 20% of our daily intake calories,that's 400-500 for a man and 350-400 for a woman
a. The term describes living things that are best suited to their environment.
b. Species that survive are the ones that make or meet changes.
c. Florida has a rich record.
d. Two examples of land animal fossils found in Florida are the ________ and the ______.
e. Some animals unable to adapt to the changing environment became ___________.
f. Living things _______________ over time to meet their changing environment.
g. This biologist, __________________, studied evolution in the 1800s.
h. The ________________ was a giant, armadillo-like animal with a spiked tail that once lived in Florida.
i. The Origin of Species is a book written in 1859 about ___________________.
j. Nature selects the fittest for ______________________because they have useful traits.
k. Changes may occur in animals due to changes in the sequence of base pairs in their DNA, and this is known as a __________________.
l. Oldfield mice show ____________________ in the color of their fur.
m. The survival of the light-colored oldfield mice on Florida's Gulf Coast is an example of the process called ________________________.
n. Evolution is a controversial theory that has survived much _________________.
2. Write a micro-theme using and explaining the following terms.
a. "Survival of the fittest"
b. Adaptation
c. Evolution
3. Use the list below to write the correct term for each definition below.
adaptation
extinct
gene
Darwin
fittest
mutation
evolution
fossils
natural selection
_________________________ a. A change in genes that causes a change in a particular trait
_________________________ b. Describes a species that no longer has any living representatives
_________________________ c. A trait that a species develops over generations which helps it to survive
_________________________ d. a unit of DNA that determines a specific trait in the organism
_________________________ e. The survival of organisms best fit for the environment
_________________________ f. Changes in living things over time
_________________________ g. Remains of organisms that lived in the past
_________________________ h. Best suited to survive in its environment
_________________________ i. The biologist who developed and offered evidence of the theory of Natural selection
4. Answer the following using complete sentences.
a. How does genetic variation create new species over time?
b. How does changing the proteins produced in a cell alter what an organism does?
c. In terms of evolution, why do animals that are preyed upon (eaten) likely to have a high number of offspring?
d. Why is it vital that a scientist recognize his or her own biases and that they be open to criticism?
5. We chose to spotlight Florida animals because The Ogburn School is located in Florida. Your next assignment is to conduct an internet search to discover information related to animal diversity. You may choose to research animals in the state you live in. If you live in Florida you may choose to research a Florida endangered species, or one from another state or country. Your research must include the following:
a. species of animal
b. location of animal (state or country)
c. the animal's status (extinct, endangered, threatened, etc.)
d. reason for status (why is animal extinct, endangered, threatened, etc.)
e. type of habitat needed for survival
f. conservation efforts on the animal's behalf
g. prospects for the future of this animal
Answer:
alveolus (alveoli, plural) The depressions or sockets in the tooth-bearing skeletal elements such as maxillae and dentaries into which the roots of the teeth are inserted. Especially well developed in mammals and crocodilians.
amniote A member of the taxonomic group Amniota, such as reptiles, mammals, and birds, characterized by possession of the amnion, a specialized embryonic membrane.
arboreal Descriptive term for an animal that primarily lives in trees.
astragalus (also talus) Bone that articulates with the tibia and fibula to form the ankle joint.
atlas The first or anteriormost vertebra of a tetrapod, the one that articulates with the skull.
auditory bulla (auditory bullae, plural) The bone that encloses the inner ear region of the mammalian skull and is found on the ventral surface of the posterior region of the skull. Typically fragile and thus rarely preserved in fossils; but inflated and composed of very solid bone in whales. For that reason, whale auditory bullae are commonly recovered as fossils. Alternatively called the tympanic bulla.
autochthonous In paleontology, used to describe a taxon or clade that evolved frim its common ancestor in its present geographic region.
axis (axes, plural) The second vertebra in a tetrapod, it follows the atlas.
rank the carbon dioxide level in each stage from the highest to lowest
Answer: answer below ⬇
hopes this helps cha..
#blueberrysugar
During meiosis, crossing-over may occur. What is usually the result of crossing-over?
A- the development of identical offspring
B- variation within the species
C- overproduction of gametes
D- fertilization and development
In severe pancreatitis, why does the destruction of the islet cells result in diabetes mellitus?.
Answer:
Type 1 diabetes, formerly known as juvenile diabetes or insulin-dependent diabetes, results from the specific autoimmune destruction of the pancreatic islet beta cells. The subsequent lack of insulin leads to increased blood and urine glucose.