__________ are tetrapods that live on land but typically return to water to reproduce. Fill in the blank(s) with the appropriate word(s)
ANSWER: Amphibians
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Mammals and birds eat more often than reptiles. Which of the following traits shared by mammals and birds best explains this habit?
A) endothermy B) ectothermy C) insulating body cover D) amniotic egg E) terrestrial
Plant hormones generally ____ concentrations to be effective, and usually have ____ on different plant tissues
a. are effective only in extremely large; the same effect b. require only low; different effects c. require only low; the same effect d. are effective only in extremely large; different effects e. require moderate; the same effect
Dolly, the cloned sheep, had telomeres that:a
Were unusually short. b. Were unusually long. c. Got longer with each cell division. d. Did not change in length. e. Perfectly normal
Most sensory signals destined for the cerebrum pass
through the a. pons. b. olfactory area. c. cerebellum. d. thalamus. e. hypothalamus.