Exam 21: The Seedless Vascular Plants - Ferns and Their Relatives

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Embryos are not produced by ferns, only spores.

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Sporophylls are

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The leaves of spike mosses and quillworts have an appendage called a

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Archegonia and antheridia are structures where ________ are produced.

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Which of the following have stems as their principal site of photosynthesis?

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Enations are small, flattened green veinless protuberances found on the stems of

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Ferns and fern allies are larger than the bryophytes because ferns and fern allies have water and food conducting systems.

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The gametophytes of which of the following are saprobic?

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________ are an excellent place to find fossils of ferns and fern allies.

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Tmesipteris is a close relative of whisk ferns.

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Which of the following is considered to be a likely ancestor of the club mosses?

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Which of the following unrelated structures function according to changes in humidity?

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The antheridia of ferns are usually located

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Cannel coal is fossilized

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Ancient relatives of both club mosses and horsetails were large and treelike.

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Primitive plants, which are believed to be the ancestors of present-day ferns, appeared during which of the following geological periods?

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Whisk ferns produce sporangia on the upper surface of leaf-like flaps of tissue called ________.

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Ferns produce seeds but no spores.

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A petrifaction is a fossil in which the preserved organism is found in an unaltered state.

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Lycopod sporangia are produced on the upper surface of modified leaves called

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