the answer is 21<span>% oxygen, </span>
The answer is A. Apicomplexa.
B. subtract the frequency of the recessive allele from 1.
Muscle contraction that results in a change in joint angle is called <span>concentric contraction.
This contraction occurs when enough force that can overcome the resistance applied is developed by the muscle where this force developed is larger than the force of the resistance applied.</span>