Organisms and Populations Question 2
2. Which one of these animals is not a homeotherm?
(a) Macropus
(b) Chelone
(c) Psittacula
(d) Camelus
Show Answer
Answer : b
Hints & Solutions
(b) The two extremes in the animal kingdom are endothermic homeotherms and ectothermic poikilotherms. Most mammals, including humans, as well as most birds are endothermic homeotherms, while most fish, invertebrates, reptiles, and amphibians are ectothermic poikilotherms. Chelone (Turtle) belongs to class reptilia which is poikilotherm or cold blooded.
