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Flashcards in Review Questions Deck (38)
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31

What are three adaptations for drier and cooler environments of gymnosperms?

reduced gametophyte generation, reduced size of leaves, waxy cuticle, evergreens, bark and cones

32

Why do some plants have seedless fruit?

hormonal trickery

33

What traits do hornworts share with algae ancestors?

a single, large chloroplast

34

What is the difference between green fruits and colored fruits?

green fruits are not ripe, are hard, unscented and often sour

35

True of False. Fungi are mostly autotrophs.

False, they are mostly heterotrophs, but in appearance do look like plants

36

The first vascular plants (pteridophytes) moved farther inland to avoid competition with bryophytes. What two carbohydrates did these plats start producing that allowed them to live in a drier environment?

Lignin and Pectin

37

What are Ephedra and Welwitschia?

extreme desert plants; ephedra becomes tumbleweeds when they die and Welwitschia have the largest leaves of all plants.

38

Which generation is the dominant generation of Pteridophytes?

sporophyte generation