BIOL112 SI- Session 18 (3/27)- Ch. 26 (part 2)

Seedless plants cannot live in dry habitats. (why or why not?)

• True

• False

Spores are ____, while seeds are ____.

• multicellular, unicellular

• diploid, haploid

• unicellular, multicellular

• haploid, haploid

Which is not true about tracheids?

• They transport water and dissolve minerals throughout the plant.

• They are not part of the plant's vascular system.

• They provide structural support for the plant.

• They contain lignin.

Monoecious plants have the male and female sporangia on ____ plant(s), while dioecious plants have them on ____ plant(s).

• different, the same

• the same, different

• neighboring, different

• the same, neighboring

Which is not a phyla of Gymnosperms?

• Coniferophyta

• Ginkophyta

• Cycadophyta

• Anthophyta

Which of the these still have a flagella on their sperm, despite being seed plants?

• cycads, gnetophytes

• ginkgos, cycads

• conifers, cycads

• ginkgos, conifers

Which is not true of gymnosperms?

• They have alternation of generations.

• They are homosporous.

• They have a reduced gametophytes.

• They have a dominant gametohpyte.

____ carry the male gametophyte to the female gametophyte for fertilization.

• seeds

• ovules

• gametophytes

• pollen grains

The microspore germinates within the ovule to produce the male gametophyte, that will produce a sperm to be fertilized.

• True

• False

Seeds develop from a fertilized ____.

• megaspore

• ovule

• integument

• megasporangium