Reference no: EM133223215

Which of the following combinations of "categories of thermoregulation" is the most prominent in nature?

a) An ectothermic poikilotherm.

b) An ectothermic homeotherm.

c) An endothermic homeotherm.

d) An endothermic poikilotherm.

Which of the following are examples of heterothermy?

a) Behavioural thermoregulation.

b) Seasonal hibernation.

c) Torpor.

d) A and B.

e) B and C.

A lizard acclimated to 5°C is transferred to a 20°C environment. Metabolic rate (MR) was measured at 5°C (before the transfer) and at 20°C one hour following the transfer and six weeks following the transfer. Which of the following statements about metabolic rate is true?

a) MR six weeks after the transfer to 20°C would be less than MR one hour after the transfer due to an increase in enzyme synthesis.

b) MR six weeks after the transfer to 20°C would be less than MR one hour after the transfer due to a decrease in enzyme synthesis.

c) MR one hour after the transfer to 20°C would be less than MR rate six weeks after the transfer due to an increase in enzyme synthesis.

d) MR one hour after the transfer to 20°C would be less than MR rate six weeks after the transfer due to a decrease in enzyme synthesis.

Which of the following statements with respect to the membrane fluidity-temperature relationship is correct when these different animals are found at their normal body temperature?

a) Membrane fluidity is less in all species of fish compared to the mammal and the bird.

b) Membrane fluidity is greater in all species of fish compared to the mammal and the bird.

c) Membrane fluidity is the same in all species of fish, the bird and the mammal.

d) Membrane fluidity is less in the Antarctic fish than all of the others (trout, perch, cichlid, starling; hamster).