Exam 10: Thermal Relations

Refer to the figure shown. Fish were housed under three different temperature conditions. Their response to acute and chronic temperature changes is plotted on the figure. What will happen to line IV as temperature continues to increase beyond the scale of the visible x axis?

The three time frames over which animals respond physiologically to environmental change are

Why is it that the body temperatures of terrestrial poikilotherms can substantially exceed air temperature but body temperatures of aquatic poikilotherms are generally very close to water temperature?

All else being equal, the convective coefficient (per unit area) is likely to be highest when wind speed is _______ and animal size (diameter) is _______.

Evaporation is an effective mechanism for cooling because the latent heat of

Refer to the figure shown. Fish were housed under three different temperature conditions. Their response to acute and chronic temperature changes is plotted on the figure. Which line best represents the acute response line of animals acclimated to the coldest temperature?

Over evolutionary time, membrane fluidity can be maintained at lower temperatures by

Which statement about insect flight is true?

What are two major benefits of controlled hypothermia in birds and mammals?

How would the emissivities (e) of a desert rodent and a desert lizard compare at wavelengths of 3‒4 mm or longer?

Refer to the figure shown. Multiple species of poikilotherms that naturally experience different body temperatures are shown in the figure. The response of each species at multiple temperatures is plotted on the figure. What is the most appropriate label for the y axis?

The environmental temperature is 25°C. A small lizard at 20°C will _______ the environment whereas a large dog at 37°C contains _______ heat than the lizard and will _______ the environment.

Animals, plants, and other objects in the natural environment generally emit radiation at wavelengths of _______ or longer.

Compensation is acclimation via

Which method of evaporative water loss can induce respiratory alkalosis?

Compared to the average field metabolic rates for a nonavian reptile, the average field metabolic rate of a similar size bird or mammal is

Refer to the figure shown. One species of homeotherm under two different environmental conditions was exposed to temperature changes. What is the most appropriate label for the y axis?

Suppose that a mammal that was a temporal heterotherm needed to survive in a winter environment with severely limited food resources. At which of the following mean ambient temperatures would the animal most likely survive the winter?

The dromedary camel can survive without drinking water for days because of

You are in Las Vegas in summer and you see a dog tied to a fence with no access to shade. As the dog is obviously having problems with the heat, what would be the fastest means of cooling the dog's internal temperature?