Answer:
hmm.......................
<span>A. a second group of scientists finding significant differences in the DNA of the two different subspecies </span>
Answer:
Energy flows through the organisms from bottom to top and increases at each level.
Explanation:
Answer: a. action potential frequency is high enough that no relaxation of muscle fibers occurs.
Explanation:
A tetanic contraction occurs due to repeated stimuli at short intervals. In this situation, the muscle fiber does nor relax and contracts again. It is a process of sustained contraction of muscles, which evoke when the motor nerve innervates a skeletal muscle and emits the action potential at high rate. The muscles become hyperactive in this condition.
