They will become extinct over time. This is because they
will be unable to survive in the changed environment due to lack of desirable traits. This is especially true for a small population of
species that do not have a wide variation in their genotypes on which natural selection
could act upon.
Answer: Pia mater. The pia mater (Latin: tender mother) is a very delicate membrane. It is the meningeal envelope that firmly adheres to the surface of the brain and spinal cord, following all of the brain's contours
Explanation:
Ribosomes and endoplasmic reticulum
The answer is D. It <span>keeps outside substances away from the receptor cells</span>
