For each statement below, indicate whether is true or false. (Enter 1 for true,

Question

For each statement below, indicate whether is true or false. (Enter 1 for true, 2 for false). Homeostasis does not occur in ectotherms. A caribou maintains its body temperature at about 37degree C despite Arctic winter temperatures that plummet to -60degree C. This is an examples of homeostasis. Homeostasis is the ratio of the large changes in the external environment over the small changes in the internal factors. Black flies in the arctic have homeostatic control over some parameters (eg. glucose) but not others (eg. temperature). Blood Na+ concentrations are regulated in arctic char despite movement between freshwater and seawater. This is NOT an example of homeostasis. True False

Explanation / Answer

T F T T T

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