Biology

Sylvia S. Mader, Michael Windelspecht

Chapter 23

Plant Evolution and Diversity - all with Video Answers

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Chapter Questions

Problem 1

Which of these are characteristics of land plants?
a. multicellular with specialized tissues and organs
b. photosynthetic and contain chlorophylls a and b
c. protect the developing embryo from desiccation
d. have an alternation-of-generations life cycle
e. All of these are correct.

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Problem 2

Label this diagram of alternation-of-generations life cycle.

Nalvi Duro

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Problem 3

In the moss life cycle, the sporophyte
a. consists of leafy, green shoots.
b. is the heart-shaped prothallus.
c. consists of a foot, a stalk, and a capsule.
d. is the dominant generation.
e. All of these are correct.

Shazia Naz

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Problem 4

In bryophytes, sperm usually move from the antheridium to the archegonium by
a. swimming.
b. flying.
c. insect pollination.
d. wind pollination.
e. bird pollination.

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Problem 5

A small, upright plant that resembles a tiny, upright pine tree with club-shaped strobili and microphylls is a
a. whisk fern.
b. lycophyte.
c. conifer.
d. horsetail.
e. fern.

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Danielle Narzisi

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Problem 6

Microphylls
a. have a single strand of vascular tissue.
b. evolved before megaphylls.
c. evolved as extensions of the stem.
d. are found in lycophytes.
e. All of these are correct.

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Problem 7

How are ferns different from mosses?
a. Only ferns produce spores as dispersal agents.
b. Ferns have vascular tissue.
c. In the fern life cycle, the gametophyte and sporophyte are both independent.
d. Ferns do not have flagellated sperm.
e. Both b and c are correct.

Prashant Bana

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Problem 8

Ferns have
a. a dominant gametophyte generation.
b. vascular tissue.
c. seeds.
d. Both a and b are correct.
e. Choices a, b, and c are correct.

Nalvi Duro

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Problem 9

Which of these is found in seed plants?
a. complex vascular tissue
b. pollen grains that are not flagellated
c. retention of female gametophyte within the ovule
d. roots, stems, and leaves
e. All of these are correct

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Problem 10

Gymnosperms
a. have flowers.
b. are eudicots.
c. are mono cots.
d. produce fruit.
e. reproduce by seeds

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Problem 11

In the life cycle of the pine tree, the ovules are found on
a. needlelike leaves.
b. seed cones.
c. pollen cones.
d. root hairs.
e. All of these are correct

Alexander Cheng

Alexander Cheng

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Problem 12

Which of these pairs is mismatched?
a. anther—produces microspores
b. carpel—produces pollen
c. ovule—becomes seed
d. ovary—becomes fruit
e. flower—is a reproductive structure

Nalvi Duro

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