Biology

What adaptations should one expect of the seed coats of angiosperm species whose

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Which of the following is true concerning flowering plants? A) The flower includ

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Given the differences between angiosperms and gymnosperms in the development of

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Which of the following sex and generation combinations most directly produces th

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Which of the following sex and generation combinations most directly produces th

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Which of the following sex and generation combinations most directly produces th

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Reptilian embryos are protected from desiccation by a leathery shell. Similarly,

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What is true of stamens, sepals, petals, carpels, and pinecone scales? A) They a

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Which structure is common to both gymnosperms and angiosperms? A) stigma B) carp

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Which trait(s) is (are) shared by many modern gymnosperms and angiosperms? 1. p

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Arrange the following structures, which can be found on male pine trees, from th

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Which of the following can be found in gymnosperms? A) nonfertile flower parts B

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Within a gymnosperm megasporangium, what is the correct sequence in which the fo

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Which of the following statements is true of the pine life cycle? A) Cones are h

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Which of the following statements correctly describes a portion of the pine life

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Generally, wind pollination is most likely to be found in seed plants that grow

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Gymnosperms differ from both extinct and extant (living) ferns because they A) a

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A researcher has developed two stains for use with seed plants. One stains sporo

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Which of the following is most important in making the typical seed more resista

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In terms of alternation of generations, the internal parts of the pollen grains

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Arrange the following in the correct sequence, from earliest to most recent, in

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Suppose that the cells of seed plants, like the skin cells of humans, produce a

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In addition to seeds, which of the following characteristics are unique to the s

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The seed coat's most important function is to provide A) a nonstressful environm

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All of the following cellular structures are functionally important in cells of

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