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Ch23

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Ch23
In the alternation of generations life cycle of plants, gametes are produced by the gametophyte. homospores. fruit. sporangia. strobili. Characteristics of eudicots include all EXCEPT two cotyledons. woody or herbaceous plants. leaves with netted veins. vascular bundles arranged irregularly in the stem. flower parts in fours and fives.

Which plant structure is not found in the lycophytes? microphylls microspores archegonia rhizome

Gymnosperm are characterized by producing "naked seeds". Which of the following group is not classified as a gymnosperm? horsetails. cycads. conifers. ginkgoes. gnetophytes. Evidence for plants evolution from a freshwater algal species is supported by which of the following?
Both green algae and plants have chlorophylls a and b and various accessory pigments.
Both green algae and plants store excess carbohydrates as starch and have cellulose in their cell walls.
Molecular evaluation of ribosomal RNA provides evidence of the evolutionary relationship of plants and green algae.
All of the choices are evidence.

Which of the following features would have helped early plant ancestors evolve to a terrestrial existence? apical cells cellulose in the cell walls all of these features would have helped placenta plasmodesmata
According to the cladogram pictured here, land plants and green algae

are in different clades and form a polyphyletic group. are in the same clade and form a monophyletic group. do not share common ancestry.
None of the above. I would suggest picking a specific group to ask about instead of land plants.

All of the following are nonvascular plants EXCEPT lycophytes. liverworts. mosses. hornworts.

Which benefit did the lycophytes derive from their evolution of megaphylls?
An increased ability to capture more solar energy.
Increased ability to produce greater stores of food.
Their fitness would have increased due to a greater ability to photosynthesize.
All of the above are benefits they would have received.

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