1. How does non shivering thermogenesis contribute tothermoregulation?

Select one:

a. It increases heat production by increasing metabolicactivity.

b. It increases heat production by speeding up the rate of bloodflow throughout the body.

c. It vasoconstricts peripheral blood vessels and directs bloodflow to the core of the body.

d. It increases sweat production in hot environments.

2. Depending on the environment, heat can be lost orgained through various channels. Which of the following statementsare true about heat transfer during exercise? Select all thatapply.

Select one or more:

a. Wind increases heat loss via convection

b. Heat produced by active muscles is picked up by circulatingblood and transported to other parts of the body.

c. On hot days, heat can be radiated from the ground to thebody.

d. Convection occurs when sun rays heat the body on hotdays.

e. The potential risk for heat stress can be measured by airtemperature alone

3. Mary is exercising outside on a hot humid day and issweating a lot. What statement is likely true about Mary'scondition?

Select one:

a. Mary's risk for heat stress is reduced due to the humid airand a high sweat rate.

b. Mary's ability to thermoregulate is limited because sweat isless able to evaporate in humid environments.

c. Mary is likely experiencing non-shivering thermogenesis dueto the temperature.

d. Mary is likely experiencing an increased blood plasma volumedue to dehydration.