Chapter 18: Gymnosperms


Living Gymnosperms; p. 436; moderate; ans: c



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Chapter 18-final
Chapter 17-final
15. Living Gymnosperms; p. 436; moderate; ans: c

In gymnosperms, pollination occurs usually by:


a. insects.

b. water.

c. wind.

d. birds.

e. mammals.

16. Living Gymnosperms; p. 436; moderate; ans: a

______ produce nonmotile sperm.


a. Conifers and gnetophytes

b. Conifers and cycads

c. Cycads and Ginkgo

d. Cycads and gnetophytes

e. Ginkgo and gnetophytes
17. Living Gymnosperms; p. 436; moderate; ans: c

In which of the following groups is the pollen tube haustorial?


a. Conifers and gnetophytes

b. Conifers and cycads

c. Cycads and Ginkgo

d. Cycads and gnetophytes

e. Ginkgo and gnetophytes
18. Living Gymnosperms; p. 436; moderate; ans: e

In which gymnosperms do multiflagellated sperm swim to an archegonium?


a. None

b. Ginkgo only

c. Gnetophytes only

d. Cycads only

e. Ginkgo and cycads


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