1. 22-4 Seed Plants

2. Gymnosperm Gymonosperm is the seed plant that bears its seeds directly on the surfaces of cones.

3. Angiosperm Angiosperm is a flowering plant; bears its seeds within a layer of tissue that protects the seed.

4. Cone Cone is in gymnosperms, a seed-bearing structure; in the retina of the eye, a photoreceptor that responds to light of different colors, producing color vision.

5. Flower A flower is a seed-bearing structure of an angiosperm.

6. Pollen Grain Pollen grain is the male gametophyte in seed plants.

7. Pollination Pollination is the transfer of pollen from the male reproductive structure.

8. Seed Seed is the embryo of a living plant that is encased in a protective covering and surrounded by a food supply.

9. Embryo Embryo is an organism in its early stage of development.

10. Seed coat Seed coat is the structure that surrounds and protects a plant embryo and keeps it from dying out.