Answer:
a
Explanation:
Evolution is supposed to take place over a long period of time and is made up of small changes
Answer:
D) Tight junctions
Explanation:
Based on the information provided within the question it can be said that the structure that performs this function are known as tight junctions. This structure has two different functions. The first being to limit the passage of molecules and ions through the space between cells, and the second function is that is blocks the movement of important membrane proteins between the epithelial cells
Your answer is gonna be the first second and fourth options
