Which of these actions describes secondary growth?
A. growth in height
B. development of fruit
C. development of leaves and flowers
D. development of wood and bark
Ans: D. development of wood and bark
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One morphological feature of modern cetaceans is a vestigial pelvic girdle. If it is determined that the cetacean lineage diverged from the artiodactyls' lineage after the divergence of pigs and other artiodactyla
, then the vestigial pelvic girdle of cetaceans should be considered a shared _____. A) ancestral character of the cetartiodactyls B) derived character of the cetartiodactyls C) ancestral character of the cetaceans D) derived character of the cetaceans
Feedback inhibition
A. is a means of regulating the amount of product produced. B. often involves the use of allosteric enzymes. C. involves inhibiting the last of a series of reactions. D. results in raising the activation energy for the reaction. E. is a means of regulating the amount of product produced AND often involves the use of allosteric enzymes.
In plants, ammonium is often converted to nitrate before it can be used by the plant. This process is known as
A) nitrogen fixation. B) photosynthesis. C) decarboxylation. D) nitrification. E) denitrification.
All of the following terms describe environmental adaptations found among the members of the domain Archaea, except
A. thermophilic. B. halophilic. C. acidophilic. D. barophilic. E. psychrophilic. F. There are no exceptions here. Each of these adaptations is seen among different members of the domain Archaea.