There are guard cells surrounding each stoma that cause them to open or close throughout the life cycle of the plant. This occurs in response to water and ions concentration in the plant cell.
Answer:
B
Explanation:
Because of the different shapes and components that a prokaryotic cell has such as flagellum that isn't show on the other ones
<span>Mutations generated in a species gene pool important because mutations cause evolution.</span>
The part of the Sun that you are observing when you see a blotchy appearance is the surface of the sun. This appearance is called granulation which is caused by the convection of the hot material inside the sun which go up and down the surface of the sun. Because of its sandy texture it is sometimes called lemon peel or rice grain.
