A dog is an endotherm and a lizard is an ectotherm.ONC1037Early in the morning, which animal will be the most metabolically active?
Question
A dog is an endotherm and a lizard is an ectotherm.
ONC1037
Early in the morning, which animal will be the most metabolically active?
Solution
Early in the morning, the dog will be the most metabolically active. This is because dogs, as endotherms, can regulate their own body temperature internally. This means they can be active and maintain a high metabolic rate regardless of the time of day or the external temperature.
On the other hand, lizards, as ectotherms, rely on external sources of heat to regulate their body temperature. Early in the morning, when it's typically cooler, a lizard's metabolic rate will be lower because they are not able to warm their bodies as effectively. They become more active as the day warms up.
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