Question

An experiment to measure the rate of respiration in crickets and mice at 10°C and 25°C was performed using a respirometer, an apparatus that measures changes in gas volume. Respiration was measured in mL of O₂ consumed per gram of organism over several five-minute trials and the following data were obtained. According to the data, the crickets at 25°C have greater oxygen consumption per gram of tissue than do the crickets at 10°C. This trend in oxygen consumption is the opposite of that in the mice. The difference in trends in oxygen consumption among crickets and mice is due to their ________.

Answer 1

The correct answer is "Mode of internal temperature regulation".

Step-by-step explanation:

Mice have different ways of regulating their internal temperature than crickets. A mice that experiments that temperature is decreasing from 25°C to 10°C will increase its rate of respiration as a result of fear and an attempt to increase its internal temperature by producing more energy. On the other hand, crickets does not have this respond to stress, its cellular respiration is straightforward and its respiration rate will increase at higher temperatures.

Answer 2

Mode of internal temperature regulation

Step-by-step explanation:

Internal thermoregulation refers to the ability of the animal to maintain homeostasis within a certain temperature range. As the temperature of the internal body increases, physiological processes such as enzyme activity are affected.

While enzyme activity momentarily increases with temperature, enzymes start to polymerize at high temperatures (about 40-50 C for mammals) and lose their function. Hypothermia occurs and other bodily functions are affected as the internal body temperature drops below normal levels.

There are different mechanisms of thermoregulation that animals use to regulate the temperature of their inner body.