DENDROLOGY AND SOCIETY
PLANT CLASSIFICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They grow legs when they get older
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Their body temperature changes with the surroundings
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They have fins to keep them upright in the water
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None of the above
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Detailed explanation-1: -ectotherm, any so-called cold-blooded animal-that is, any animal whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface. The ectotherms include the fishes, amphibians, reptiles, and invertebrates.
Detailed explanation-2: -Amphibians are ectothermic, so their internal body temperature is generally about the same as the temperature of their environment. When it’s cold outside, their body temperature drops, and they become very sluggish. When the outside temperature rises, so does their body temperature, and they are much more active.
Detailed explanation-3: -Fish, reptiles, and amphibians are called ectotherms because they depend on external sources to maintain body temperature.