The primary function of the respiratory system is to supply blood with oxygen
It is D
:D =-O :-P ;-) :-( :-) :-! :-$ B-) :O :-* :-D :'( :-\ O:-) :-[
Answer:
Stomatal apparatus is a pair of guard cells with or without surrounding subsidiary cells which function as a value to open or close a stomatal pore for gaseous exchange and transpiration. Each stoma is made of two bean-shaped cells called the guard cells.
Explanation:
<h2>B is the correct answer!</h2><h3 /><h3>Common sense, really. You wouldn't find fossils in the air.</h3>
A level of organization within the biosphere is a group of interacting individuals belong to one species and living in the same geographic area is a population.
