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  • Plant Evolution and Diversity

Biology

Sylvia S. Mader, Michael Windelspecht

Chapter 23

Plant Evolution and Diversity - all with Video Answers

Educators

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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.

Check back soon!
04:38

Problem 2

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

Nalvi Duro
Nalvi Duro
Numerade Educator
00:44

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
Shazia Naz
Numerade Educator
02:34

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.

Nalvi Duro
Nalvi Duro
Numerade Educator
02:54

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.

DN
Danielle Narzisi
Numerade Educator
02:41

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.

Nalvi Duro
Nalvi Duro
Numerade Educator
02:50

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
Prashant Bana
Numerade Educator
03:26

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
Nalvi Duro
Numerade Educator
01:19

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

Priya Manhas
Priya Manhas
Numerade Educator
02:45

Problem 10

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

Nalvi Duro
Nalvi Duro
Numerade Educator
01:32

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
Numerade Educator
03:14

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
Nalvi Duro
Numerade Educator

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