The Figure Below Is from an Experiment on Athletes

question 20

Multiple Choice

The figure below is from an experiment on athletes. The "live high, train low" group lived for 18 days in rooms with a simulated altitude of 3,000 m, while training (exercising) at 1,200 m. Use this information and this figure to answer the following questions.
-What does the graph show about the experiment?

• A)The increase in red blood cell production from living at a high altitude diminishes after returning to low altitude.
• B)Living at high altitude does not have an effect on red blood cell production.
• C)The increase in red blood cell production from living at a high altitude occurs from day 0.

Identify the role of the nervous system in response to stress and danger.

Comprehend the concepts of action potential and resting potential in neurons.

Recognize the importance of neurotransmitters in the functioning of the nervous system.

Understand the physiological effects of neurotransmitters on human behavior and emotions.