Phylogenetic relationships between prokaryotes are most accurately determined using
A. phenotypic characterizations.
B. genotypic information.
C. the fossil record.
D. carbon dating.
E. phenotypic characterizations AND genotypic information.
B
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Which physiological process allows many organisms to maintain relatively constant conditions within their cells and
tissues?
a. torpor b. homeostatic responses c. facultative responses d. behavioral adaptations e. photosynthesis
According to the MacArthur-Wilson model, the mainland harbors ____
a. a lower species richness than islands b. a species pool from which species migrate to nearby islands c. none of the same species as on nearby islands d. an easier community to study than nearby islands e. many species that are extinct on nearby islands
more efficient in producing carbohydrates
b. predominates in C3 plants in cool weather when water is plentiful. c. predominates in C4 plants on hot days. d. produces the same amount of PGA. e. does none of these.
An animal interrupting its daily pattern of activity to travel in a persistent manner toward a new habitat is known as
A. taxis. B. kinesis. C. migration. D. habituation. E. imprinting.