Endotherms differ from ectotherms in that:
a. Environmental temperature has little effect on the energy budget of endotherms but a strong effect on the energy budget of ectotherms.
b. An endotherm's metabolic rate is not affected by temperature whereas the metabolism of an ectotherm has a Q10 of 2-3.
c. Endotherms are vertebrates and ectotherms are invertebrates.
d. On average, endotherms are much better sprinters (i.e., can run faster for short distances) than ectotherms.
e. Endotherms are much better able to support endurance exercise than ectotherms.
Vertebrates regulate temperature by balancing heat produced by the organism and that of the environment. Thus, these occur through processes like radiation, conduction, convection, and evaporation. It is an essential aspect that controls the efficient body metabolic processes by controlling reactions. Some strategies implemented to regulate temperature among humans include sweating and shivering.
Answer and Explanation: 1
Endotherms differ from ectotherms in that a. Environmental temperature has little effect on the energy budget of endotherms but a strong effect on the energy budget of ectotherms.
Endotherms are organisms that generate internal heat due to their high metabolic rates. Thus, endotherms energy budget does not rely on the environment's temperature. Examples of endothermic vertebrates include birds and mammals. However, exothermic organisms rely on external heat sources due to their low metabolic rates. Thus, the energy budget of ectothermic vertebrates like reptiles and fish are greatly affected by environmental temperatures.
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fromChapter 24 / Lesson 11
This lesson will cover the difference between endotherms vs ectotherms. It will show examples of ectothermic and endothermic animals and will discuss the techniques of thermoregulation these animals use.