Answer:
D. respiration
Explanation:
It is basically a process that takes place in the cells of organisms. It converts chemical energy from oxygen molecules or even nutrients into ATP.
Hope this helped!
Answer:
B I think
Explanation:
there are 2 directions and in each direction there are 2 working in it
Answer:
Not that often
Explanation:
Exponential growth can only occur if there are unlimited resources, no competition or no predators.
This relates to the definition of the word because asthma is a condition which causes difficulty in breathing.
