Analogous features are problematic when constructing evolutionary tree because they are
a) based on DNA instead of comparative anatomy
b) based on comparative anatomy instead of embryology
c) monophyletic instead of convergent
d) the result of common ancestry instead of natural selection
e) the result of natural selection instead of common ancestry
Answer: e) the result of natural selection instead of common ancestry
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If substantial lactic acid were found in a person's bloodstream, which type of glucose breakdown is occurring?
A) cellular respiration B) fermentation C) electron transport D) citric acid cycle
Flattened sacs of internal membranes associated with photosynthesis are called
A. cristae. B. chloroplasts. C. thylakoids. D. photosystems. E. the stroma.
The structure labeled as 2 in the accompanying figure is the:a
endoderm layer. b. mesoderm layer. c. blastopore. d. blastocoel. e. archenteron.
You arrive late to a biological seminar. However, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. Immediately, you know that they are talking about a:
A. nucleic acid. B. lipid. C. carbohydrate. D. protein.