Chapter 21 - Plant Evolution

Question 1

The first plants were ______________.

Answer 1

c. bryophytes

Question 2

Which of the following statements is false?

a. Ferns produce seeds inside sori.
b. Bryophytes do not have xylem or phloem.
c. Gymnosperms and angiosperms produce seeds.
d. Only angiosperms produce flowers.

Answer 2

a. Germs produce seeds inside sori.

Question 3

In bryophytes, eggs are fertilized in a chamber on the ___________ and a zygote develops into a ___________.

a. sporophyte; gametophytes
b. gametophyte; sporophyte
c. sorus; cone

Answer 3

b. gametophyte; sporophyte

Question 4

Horsetails and ferns are __________ plants.

a. multicelled aquatic
b. nonvascular seed
c. seedless vascular
d. seed-bearing vascular

Answer 4

c. seedless vascular

Question 5

Coal consists primarily of compressed remains of the ___________ that dominated Carboniferous swamp forests.

a. seedless vascular plants
b. conifers
c. flowering plants
d. a and c

Answer 5

a. seedless vascular plants

Question 6

The ___________ produce flagellated sperm.

a. mosses
b. ferns
c. conifers
d. monocots
e. a and b
f. a through c

Answer 6

e. a and b

Question 7

A seed is a ___________.

a. female gametophyte
b. mature ovule
c. mature pollen grain
d. modified microspore

Answer 7

b. mature ovule

Question 8

True or false? Both spores and sperm of a seedless vascular plant are haploid.

Answer 8

True

Question 9

Only angiosperms produce _____________.

a. pollen
b. seeds
c. fruits
d. all of the above

Answer 9

c. fruits

Question 10

Lignin is not found in stems of ____________.

a. mosses
b. ferns
c. monocots
d. a and b

Answer 10

a. mosses

Question 11

A waxy cuticle helps land plants _____________.

a. conserve water
b. take up carbon dioxide
c. reproduce
d. stand upright

Answer 11

a. conserve water

Question 12

Cereal crops such as rice and corn are ______________.

a. monocots
b. vascular plants
c. seed plants
d. all of the above

Answer 12

d. all of the above

Question 13

Some plant secondary metabolites are used as ___________.

a. fuel
b. medicines
c. textiles
d. flooring

Answer 13

b. medicines

Question 14

Match the terms appropriately.

___ bryophyte
___ seedless vascular plant
___ gymnosperm
___ angiosperm

a. seeds, but no fruit
b. flowers and fruit
c. no xylem or phloem
d. xylem and phloem, but no ovule

Answer 14

Match the terms appropriately.

(c) bryophyte
(d) seedless vascular plant
(a) gymnosperm
(b) angiosperm

a. seeds, but no fruit
b. flowers and fruit
c. no xylem or phloem
d. xylem and phloem, but no ovule

Question 15

Match the terms appropriately.

\_\_\_ ovule
\_\_\_ cuticle
\_\_\_ gametophyte
\_\_\_ sporophyte 
\_\_\_ fruit
\_\_\_ endosperm
\_\_\_ rhizome
\_\_\_ sorus
\_\_\_ microspore

a. gamete-producing body
b. spore-producing body
c. becomes seed
d. horizontal stem
e. mature ovary
f. nutritive tissue in seed
g. where fern spores form
h. single haploid cell
i. waterproofing layer

Answer 15

Match the terms appropriately.

(c) ovule
(i) cuticle
(a) gametophyte
(b) sporophyte
(e) fruit
(f) endosperm
(d) rhizome
(g) sorus
(h) microspore

a. gamete-producing body
b. spore-producing body
c. becomes seed
d. horizontal stem
e. mature ovary
f. nutritive tissue in seed
g. where fern spores form
h. single haploid cell
i. waterproofing layer