Are all mammals homeothermic and endothermic? Explain the terms and give examples.
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Are all mammals homeothermic or endothermic? What are some examples of each?
Which statement is not true of endothermic animals?
a. They are considered âwarm bloodedâ.
b. Humans and other mammals are endothermic.
c. They regulate body temperature through behavioral mechanisms--moving into the sun or shade as needed.
d.They regulate their body temperature by physiological mechanisms--shivering, sweat, etc.
1. Why do hagfish bridge the gap between invertebrate and vertebrate chordates?
2. Why are crocodilians thought to be the closest living relatives of modern birds?
3. What characteristics define mammals?
4. What is the main reason that duck-billed platypuses are classified as mammals rather than birds? They possess a bill, like birds, and lay eggs rather than give birth to live young like other mammals.
5. Why are birds described as reptiles with feathers?
