Gymnosperms and angiosperms are able to live and reproduce in much drier habitats than bryophytes and plants such as club mosses. The adaptations that are most responsible for reproduction in drier habitats are
A. spores and gemmae.
B. seeds, spores, and fronds.
C. vascular tissue, spores, fronds, and gemmae.
D. pollen grains and seeds.
E. All of the answer choices are correct.
D. pollen grains and seeds.
Biology & Microbiology
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The pH of rain and snow in the eastern United States is now
A. 2. B. 7. C. 10. D. 4.2.
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