The lungs are functioning to take carbon dioxide out of the body. Also known as exhaling.
The answer is B because prometaphase is the start of everything hence the "pro" at the beginning of the word
Answer:
The barrier functions to regulate the chemical composition of the extracellular fluid surrounding the brain cells.
Explanation:
Blood-brain barrier
It is a very selective semipermeable membrane , hence allow some specific substance to pass via it . This barrier separates the extracellular fluid in the central nervous system and the circulating blood from the brain .
<u>The barrier is composed of the endothelial cells .</u>
Passive diffusion is shown in this system , and allows molecules like the water , glucose , amino acid to pass .
It regulates the chemical composition of the fluid of brain cell .
30% of the earth's surface is covered by forests.
----------------------------------------------------------------------------------------
1.its single celled
2.it grows in asia
3.they are long
i hope this helps! please mark as brainliest
