Diversification of mammals after the extinction of the dinosaurs is considered an adaptive radiation because a few mammal species rapidly evolved into most of the current mammalian lineages in a relatively short amount of time. This diversification was partially driven by the evolution of endothermic homeostasis in mammals, which is an example of
A. a key innovation.
B. reproductive isolation.
C. allopatric speciation.
D. hybridization.
Answer: A
You might also like to view...
Which of the following is associated with striated, multinucleated muscle tissue?
A. cardiac muscle cell B. calmodulin C. skeletal muscle cell D. smooth muscle cell
At times when Earth’s climate was cooler than it is today, the polar ice caps ____, rainfall ____, and sea levels ____
a. retreated; increased; rose b. retreated; decreased; fell c. grew larger; increased; fell d. grew larger; increased; rose e. grew larger; decreased; fell
The process of producing high-energy foods from inorganic compounds using sunlight energy is called:
a. heterotrophy. b. chemosynthesis. c. photosynthesis. d. grazing. e. solar irradiation.
M 34. An X-linked carrier is a
a. homozygous dominant female. b. heterozygous female. c. homozygous recessive female. d. homozygous male. e. heterozygous male.