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Early land plant evolution occurred in moist lowland habitats; 400 million years ago they moved to the interiors of continents. Which of the following characteristics likely contributed to colonization of continental regions further from standing water? A. absorption of water through diffusion on photosynthetic tissue. B. ability to perform photosynthesis. C. development of vascular tissue for bulk flow. D. cell-cell adhesion which provide structural support for multicellularity.
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Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers
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