From Biol301

• There was a handout comparing plant and animal reproduction. It has many examples and mostly served to show there are few differences in mechanisms employed by the two groups.

Angiosperms

• Compose 90% of land biomass
• All have flowers and fruit
• Fruit = mature ovary conataining a seed or seeds
  • Made when flowers are pollinated and eggs are fertilized

Gender Arrangments

1. Separate Sexes (dioecious): holly or ash trees
2. Hermaphrodites (monecious: one house): most plants

• Male and female flowers are separate: corn (a.k.a imperfect flowers)
• Male and female organs are together in the same flower: daffodils (a.k.a. perfect flowers)
  • Often the female organ is in the center with the male organs surrounding.

Two Types of Pollination

1. Showy flowers attract animals which then spread their seed.
2. Wind / Water pollination plants are usually drab.

• An example is corn or an oak.