Answer:
One major way it gets back into the atmosphere is by humans burning it in coal power plants
Explanation:
<span>Answer:The blood-brain
barrier (BHE)
BHE is a barrier that's highly permeability selective and protects
the central nervous system from potential dangers like viruses, bacteria and parasytes that may be circulating int he blood. <span>It is composed of endothelial cells, astrocytes, pericytes.</span></span>
D.) ovum. this is because haploid cells are present during mesois, which occurs in the reproductive organs. diploid cells are full counted cells which occurs in mitosis
