B, because species b has a higher percentage of survivors to old age than species C. Species a still has a higher rate than species C so the answer is b.
Answer:
a. activation of the sympathetic autonomic nervous system by the new experience.
Explanation:
The sympathetic division of the autonomic nervous system generates a flight or fight response. This is a series of physiological processes that start when a person has any stress, new experience or emergency conditions such as the first diving trip. One such response produced by activated sympathetic division is increased heart rate to pump more blood and deliver more oxygen to body cells and tissues. Also, the person experiences an increased breathing rate to compensate for the increased oxygen demand.
A dichotomous key is a type of single-access key that gives only two choices at one time, These keys are commonly used in biology in order to identify an unknown animal or plant.
