[Campbell Biology P.687] Which statement accurately describes a key characteristic of seed p... | Practice Question

Which statement accurately describes a key characteristic of seed plant reproduction as presented in the text?

  • A: Seed plants are homosporous, producing a single type of spore that gives rise to a bisexual gametophyte.
  • B: Megasporangia produce many megaspores, while microsporangia produce a single microspore.
  • C: Gymnosperm ovules are characterized by a single integument, whereas angiosperm ovules typically have two.
  • D: Pollen grains are equivalent to male gametophytes and require water for sperm transport to the egg.

Explanation

Seed plants are heterosporous. Each megasporangium produces one megaspore, and microsporangia produce many microspores. Gymnosperm ovules have one integument, while angiosperm ovules typically have two. Pollen grains contain the male gametophyte and allow for sperm transport without water, unlike nonvascular and seedless vascular plants.