30.2—Plant Diversity II: Evolution of Seed Plants Flashcards
1
Q
Gymnosperms bear “_____”
seeds, typically on cones.
A
-Naked.
2
Q
Angiosperm seeds are found in ______, which are mature ovaries.
A
-Fruits.
3
Q
Most gymnosperms are cone-bearing plants called ______.
A
-Conifers.
4
Q
The gymnosperms consist of what four phyla?
A
- Cycadophyta (cycads)
- Gingkophyta (one living species: Ginkgo biloba)
- Gnetophyta (Ephedra)
- Coniferophyta (conifers)
5
Q
Three key features of the gymnosperm life cycle are:
A
- Miniaturization of their gametophytes.
- Development of seeds from fertilized ovules.
- The transfer of sperm to ovules by pollen.
