Self Quiz

1. Which of the following statements about seed plants is true?

a. The phylogenetic relationships among all five phyla have been established.

b. The sporophyte generation is more reduced than in the ferns.

c. The gametophytes are independent of the sporophytes.

d. All seed plant species are heterosporous.

e. The zygote divides repeatedly to form the gametophyte.

2. The gymnosperms a. dominate all land masses today.

b. have never dominated land masses.

c. have active secondary growth.

d. all have vessel elements.

e. lack sporangia.

3. Conifers a. produce ovules in strobili and pollen in cones.

b. depend on liquid water for fertilization.

c. have triploid endosperm.

d. have pollen tubes that release two sperm.

e. have vessel elements.

4. Angiosperms a. have ovules and seeds enclosed in a carpel.

b. produce triploid endosperm by the union of two eggs and one sperm.

c. lack secondary growth.

d. bear two kinds of cones.

e. all have perfect flowers.

5. Which statement about flowers is not true?

a. Pollen is produced in the anthers.

b. Pollen is received on the stigma.

c. An inflorescence is a cluster of flowers.

d. A species having female and male flowers on the same plant is dioecious.

e. A flower with both megasporangia and microsporangia is said to be perfect.

6. Which statement about fruits is not true?

a. They develop from ovaries.

b. They may include other parts of the flower.

c. A multiple fruit develops from several carpels of a single flower.

d. They are produced only by angiosperms.

e. A cherry is a simple fruit.

7. Which statement is not true of angiosperm pollen?

a. It is the male gamete.

b. It is haploid.

c. It produces a long tube.

d. It interacts with the carpel.

e. It is produced in microsporangia.

8. Which statement is not true of carpels?

a. They are thought to have evolved from leaves.

b. They bear megasporangia.

c. They may fuse to form a pistil.

d. They are floral organs.

e. They were absent in Archaefructus.

9. Amborella a. was the first flowering plant.

b. belongs to the first angiosperm clade.

c. belongs to the oldest angiosperm clade still extant.

e. has vessel elements in its xylem.

10. The eudicots a. include many herbs, vines, shrubs, and trees.

b. and the monocots are the only extant angiosperm clades.

d. include the magnolias.

e. include orchids and palm trees.

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