What is the keystone species

Answers

Answer 1

Answer:

a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically

Explanation:

Answer 2

Answer:a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

Explanation:

The American Beaver (Castor canadensis) is one example of a keystone species in North America. In any arrangement or community, the “keystone” is considered one of the most vital parts. In a marine ecosystem, or any type of ecosystem, a keystone species is an organism that helps hold the system together.


Related Questions

What are the effects of microorganisms (bacteria, protits, and fungi) in the day to day activity of farmers​

Answers

Answer:

fertility of soil is been effected

Explanation:

Answer:

All is just to improve the soil fertility

Which of the following lists the levels of body organization from least complex to most complex?

Answers

Answer:The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

Explanation:

How is sediment formed?
A. Loose material is cemented by pressure.

B. Chemical changes cause sediment to compact together.

C. Molten rock cools above Earth’s surface.

D. Weathering breaks down rock and other material.

Thank you for whoever helps :)

Answers

Answer: D. Weathering breaks down rock and other material

Explanation:

Because weathering/erosion cause rocks to break down into tiny sediments over time

Chrysanthemum pests and diseases include leaf miners, _____, powdery mildew and leaf spot

Answers

Answer:

aphids

Explanation:

it just is trust me

4) The taxonomy of life on earth defines that humans and bats are both classified as: A) Animalia B) Chordata C) Mammalia D) All of these​

Answers

Answer:

D - all of these

Explanation:

They are both mammals

Bats are classified in:

Kingdom: Animalia Phylum: Chordata Class: Mammalia

Humans are classified in:

Kingdom: Animalia Phylum: Chordata Class: Mammalia

Therefore, the answer is D.

When a patient comes to a hospital with severe dehydration, doctors will give
them an IV filled with a salt-water solution called saline, which is isotonic with
the body's blood cells.
Why is the patient not given pure water?

Answers

Answer:

The red blood cells could burst.

Explanation:

If they are given pure water, the IV fluid will be hypotonic to the blood cells. That means water will end the red blood cells by osmosis, from a high concentration outside to a lower concentration inside.

This will result in the red blood cells becoming swollen and even potential  bursting.

Which is a common mistake to watch out for when taking a test?
reading test directions
rushing through the test
checking that answers are legible
showing all work

Answers

Answer:

Rushing through the tests B.

Explanation:

Answer:

The answer you are lookin for is B

Explanation:

how does a plant cell differ from an animal cell?

Answers

Answer:

differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.

Explanation:

Got this from google hope this helped!:)

why can b blood donate to AB blood?? ​

Answers


People with type AB+ blood are universal recipients because they have no antibodies to A, B or Rh in their blood and can receive red blood cells from a donor of any blood type. Plasma transfusions are matched to avoid A and B antibodies in the transfused plasma that will attack the recipient's red blood cells.

Answer:

Type B contains the B antigen.

This type is relatively rare (second only to AB). It contains the B antigen on its red blood cells, and the A antibody (to attack A antigens) in its plasma

Explanation:

the ends of the dna chains are made up of several repeating nucleotides that do not function in genetic instruction or as genes. These end nucleotides are called ____

A. Telomeres

B. Histones

C. Chromatids

D. Centromeres

Answers

I’m pretty sure it’s D because when I was in biology I never heard of the rest of the choices

Consumer surplus is the area

Answers

Answer:

what's the question????

What adaptations allow conifers to live in dry
habitats?

Answers

Answer:

Explanation: Long, thin needles to reduce the surface area of their leaves, the leaves' waxy outer covering, and leaf openings in cavities on the surface of the leaves to reduce water loss by evaporation.

Long, thin needles to reduce the surface area of their leaves, the leaves' waxy outer covering, and leaf openings in cavities on the surface of the leaves to reduce water loss by evaporation.

HELPPP PLEASE!! i need this answered asap pleaseee

Answers

Answer: D
Because plants do not use oxygen in order to process photosynthesis, but they do use carbon dioxide.

Answer:

D.Uses oxegin for photosynthesis

Explanation:

Plants use CO2 (carbon dioxide) for photosynthesis

Which statement best expresses a basic scientific assumption?

Answers

If a conclusion is valid, similar investigations by other scientists should result in the same conclusion.

Besides plants and insects, what else would the student need in the ecosystem? Why?

Answers

Air, water , because without air we can’t live and without water too because our bodies need air and water

List the 4 critical elements that were discussed in class to ensure that you are properly performing an underhand throw.

Answers

Answer:

si

Explanation:

Which is an abiotic factor that most limits the number of frogs living in a pond?

Answers

Answer:the temperature of the water

Explanation:

Based on what you have learned in this activity, will you share the link to that article on
brainpower? Why or why not? What should you tell your friend who originally shared the link
about the article? The next time that you run across a link on social media, what steps will
you take to evaluate it before clicking "share"?
I
Submit

Answers

Answer:

b

Explanation:

yes

. Write the differences between:
a. Root cap and root hairs
b. Tap root and fibrous root
C. Vegetative parts and reproductive parts
d. Terminal and axillary bud
e. Reticulate and parallel venation
f. Alternate and whorled arrangement of leaves​

Answers

Explanation:

fibrous root system occupies less surface area than taproot . taproot grows vertically downwards and thus reaches deep into the soil. the fibrous roots grow horizontally in all directions and thus richest deep in the soil

Random mutations can occur in an organism's DNA, causing traits that are different from other organisms in that species. Sometimes these mutations can cause problems for the organism, but other times they are beneficial. What is a possible benefit to a random mutation in an organism?

Answers

Answer: It can increase an organism’s chances of surviving

Explanation:

bird is to fly as snail is to​

Answers

Answer:

slither

Explanation:

what is Janus green b​

Answers

Answer:

Janus Green B is a basic dye and vital stain used in histology.

Explanation:

Where does mRNA and tRNA take the message for DNA?

Answers

Answer:

Ribosomes

Explanation:

The information in DNA transcribed into a message in the form of mRNA. mRNA travels to the ribosomes, which are protein synthesis factories. mRNA dictates the order of tRNAs which bring amino acids to the ribosomes, forming a polypeptide chain that becomes a protein

Humans, plants and mushrooms are all alive. What do these organisms have in common?

Answers

They all grow, they’re all living

Answer:

They are all made of cells, grow, are living, and reproduce.

Explanation:

its true

In your own words what are the definitions of:

Geological Oceanography

Physical Oceanography

Chemical Oceanography

Biological Oceanography

Answers

Answer: Oceanography is the study of all aspects of the ocean. Oceanography covers a wide range of topics, from marine life and ecosystems to currents and waves, the movement of sediments, and seafloor geology Geological oceanography is the study of Earth beneath the oceans.

Physical oceanography is the study of physical conditions and physical processes within the ocean, especially the motions and physical properties of ocean waters. Physical oceanography is one of several sub-domains into which oceanography is divided. Others include biological, chemical and geological oceanography.

Chemical oceanography is a broad and complex study of the metamorphosis that the chemicals within oceans, living marine organisms, and the ocean floor undergo. The ocean contains a multitude of chemicals; some are natural, and others are man-made. These chemicals enter the sea in a number of ways.

Biological oceanography is a field of study that seeks to understand what controls the distribution and abundance of different types of marine life, and how living organisms influence and interact with processes in the oceans.  

P.s Hope it helped ^^

True or false?
Density is equal to the mass of an object divided by its volume.

Answers

Answer:

True

Explanation:

The formula for density is

p = m/v

density = mass ÷ volume

True or False: Larger pigments will travel a greater distance on filter paper than smaller pigments.

Answers

Answer:

true true true true

true true

Answer:

I think the answer is true

Explanation:

 A pigment that is the most soluble will travel the greatest distance and a pigment that is less soluble will move a shorter distance.

Which of these choices is a risk of replacing a coal-burning power plant with
a nuclear power plant?
A. Improper storage of radioactive waste
B. Reduced greenhouse gas emissions
C. Improved respiratory health of residents
OD. New jobs created in the nuclear power plant

Answers

A) The reason why if you do not properly handle the waste you’ll have chemical and radioactive waste going into your water supply or grounds and slowly might effect your heath or it’ll effect it quickly.

The statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.

What is nuclear power plant?

Nuclear power plant is a power plant that obtains its primary energy from the heat generated in nuclear reactions.

Nuclear source of energy is a renewable source while a coal source of energy is nonrenewable.

However, nuclear radiation releases radioactive particles indiscriminately into the environment when used.

Therefore, the statement that is a risk of replacing a coal-burning power plant with a nuclear power plant is improper storage of radioactive waste.

Learn more about nuclear power plant at: https://brainly.com/question/4246037

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Does this model represent a compound? Explain your answer.

Answers

Answer:

My Response, not the sample response in the explanation.

Explanation:

It is not a compound because it has two of the same atoms combined. You need two different atoms combined to make a compound.

I put this in the assignment and got it right.

is salt and sand a suspension?

Answers

Answer:

Yes

Explanation:

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Answer:

Explanation:

The particles of salt become so small, they spread evenly throughout the water. This clear mixture of salt and water will not separate by itself. Sand in water is also a suspension. If you shake a container of sand and water, the sand spreads through the water, forming a cloudy liquid.

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