The only group of plants that produce flowers
are the
a. horsetails.
b. ferns.
c. bryophytes.
d. angiosperms.
e. gymnosperms
D
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Which habitat type in the figure above makes available the most new tissue to consumers?
A) tropical wet forest B) open ocean C) algal beds and reefs D) wetlands
A botanist is comparing the metabolic pathways for photosynthesis in cyanobacteria and in redwood trees. What do you expect she will find?
A. These two pathways will demonstrate dramatic differences. B. These pathways will utilize two very chemically different types of chlorophyll. C. These two pathways will actually be quite similar, though subtle differences may exist. D. It is impossible to compare metabolic pathways used in bacteria and eukaryotes.
Which part(s) of a neuron that conduct(s) an electrical signal towards an adjacent neuron?
a. dendrites b. cell body c. axon d. both dendrites and the axon e. dendrites, cell body, and the axon
One advantage of gas exchange in water is that
A) water can contain more oxygen than air. B) carbon dioxide is easier to eliminate in water than in air. C) it is easy to keep the exchange surface wet. D) ventilating gills in water requires very little energy.