Which pathway is the foundation for the majority of ecosystems and food chains on Earth?
A) photosynthesis
B) anaerobic respiration
C) aerobic respiration
D) chemosynthesis
E) decomposition
Ans: A) photosynthesis
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On his voyage, Darwin discovered fossils of the extinct armored glyptodonts and noticed the similarity they shared with modern:
a. rodents. b. finches. c. turtles. d. armadillos. e. ostriches.
From what structure did vertebrate lungs originally evolve?
a. fish gills b. fish guts c. fish lungs d. fish throats e. fish kidneys
Which of these is NOT a component of
biodiversity?
a. genetic diversity b. species richness c. ecosystem diversity d. ecological footprints e. more than one of these
Behavior that involves giving up something of relatively low value in exchange for getting something of great value in the future is best described as:
a) prepared learning. b) kin selection. c) reciprocal altruism. d) inclusive fitness. e) direct fitness.