31) Companion cells are specialized cells found in which plant tissue?

A) meristematic tissue

B) phloem

C) xylem

D) ground substance

32) The male gametophyte generation of angiosperms is represented by:

A) pollen grains.

B) embryo sacs.

C) seeds.

D) the style.

33) The female gametophyte generation of angiosperms is represented by:

A) pollen grains.

B) embryo sacs.

C) seeds.

D) pollen tubes.

34) Fusion of a sperm cell with the large central cell in an angiosperm embryo sac produces:

A) a spore.

B) the zygote.

C) the endosperm.

D) a pollen tube.

35) Which statement best describes the role of the megaspore in angiosperm reproduction?

A) The megaspore develops into a seed.

B) The megaspore produces pollen grains.

C) The megaspore develops into the anther.

D) The megaspore produces the egg-containing embryo sac.

36) Place the following listed items in the correct order in relation to the life cycle of a flowering plant:

(1) fertilization, (2) formation of a pollen tube, (3) pollination.

A) 1, 2, 3

B) 3, 2, 1

C) 2, 3, 1

D) 2, 1, 3

37) The source of a fruit produced by an angiosperm is its:

A) endosperm.

B) ovary wall.

C) sepal.

D) seed.

38) A flower’s nectar is food for pollinators, so one might question whether fruit is also an adaptation for attracting pollinators. Which of the following would be the most valid fact supporting the hypothesis that fruit is for encouraging seed dispersal rather than to encourage pollination?

A) Fruit is too large for pollinators to consume.

B) Fruit does not last long enough for long-term pollination cycles.

C) The carpel has already been pollinated when fruit is developing.

D) Pollinators do not have mouthparts appropriate to eat fruit.