Chapter 21

The first plants were ______. a. ferns b. flowering plants c. bryophytes d. conifers

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.

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

Horsetails and ferns are ______ plants. a. multicelled aquatic b. nonvascular seed c. seedless vascular d. seed-bearing vascular

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

The ______ produce flagellated sperm. a. mosses b. ferns c. conifers d. monocots e. a and b f. a through

A seed is a ______. a. female gametophyte b. mature ovule c. mature pollen grain d. modified microspore

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

Only angiosperms produce ______. a. pollen b. seeds c. fruits d. all of the above

Lignin is not found in stems of _______. a. mosses b. ferns c. monocots d. a and b

A waxy cuticle helps land plants ______. a. conserve water b. take up carbon dioxide c. seed plants d. all of the above

Cereal crops such as rice and corn are ______. a. monocots b. vascular plants c. seed plants d. all of the above

Some plant secondary metabolites are used as _____. a. fuel b. medicines c. textiles d. flooring

Match the terms appropriately. ______bryophyte ______seedless vascular plant ______gymnosperm ______angiosperm a. seeds, but no fruit b. flowers and fruits c. no xylem or phloem d. xylem and phloem, but no ovule

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