B.
Special proteins are in charge of regulating the movement of substance through the double-membrane.
If you were to look at the age structure of a population of an endangered species and determine that there are mostly older individuals you could say that the population is declining and could be in danger of extinction.
<h3>What are
endangered species?</h3>
An organism that faces extinction is referred to as an endangered species. The two main factors that cause a species to become endangered are habitat loss and genetic diversity loss.
Because it prevents our native fish, plants, and other animals from going extinct, the Endangered Species Act is crucial. There is no turning back once they are gone they are lost forever.
Endangered species are those that are at risk of going extinct and must therefore be safeguarded and conserved. Extinct species are those that no longer exist on the planet.
It's Important to Save Endangered Species because:
- From antibiotics to anti-cancer medications, they are the sources of those substances.
- They are the earliest indication of significant environmental problems.
- They support the well-being of crops (and, indirectly, people).
- They help the economy grow.
To know more about Endangered Species refer to: brainly.com/question/10415903
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<h2>
Answer:</h2>
Blood Is A Heterogeneous mixture.
<h2>
Explanation:</h2>
Heterogeneous mixture is a mixture that is made up of different substance that remains physically separated which means the cell organelles (Red blood cells, white blood cells, platelets etc.)present in blood does not mix completely and hence get precipitated after kept still for a while.
There are three ways to identify a Heterogeneous mixture.
- It has chunks of stuff that you are able to see with your eyes.
- It appears cloudy(blur).
- After a while, the substance will separate into layers at settle at the bottom(gets precipitated).
Result: Blood is a Heterogeneous mixture
I believe the correct response is A. The population of secondary consumers would decrease, as now these organisms can't obtain energy through the food they consume which is the primary consumers as there is none and thus the population in higher tropic level dependent on them would decrease. This is the secondary consumer.
