| A | B |
|---|
| plant | multicellular autotroph in which the embryo develops within the female gametophyte |
| vascular tissue | system of tube-shaped cells that branches throughout a plant and transports water, mineral nutrients, and organic molecules |
| cuticle | waxy coating on the leaves and other aboveground parts of plants that helps the plant retain water |
| stomata (singular stoma) | microscopic pores in a leaf's surface for gas exchange |
| ovary | in flowering plants, protective organ inside a flower that bears seeds |
| gametophyte | haploid generation of a plant; produces gametes |
| sporophyte | diploid generation of a plant; produces spores |
| alternation of generations | alternation between gametophyte and sporophyte in the life cycle of a plant |
| bryophyte | plant, such as a moss, lacking vascular tissue |
| ptiderophyte | group of seedless vascular plants that includes ferns |
| gymnosperm | group of plants that bears seeds that are not enclosed in an ovary; ex pines |
| pollen | much-reduced male gametophyte of seed plants that contains cells that develop into sperm |
| seed | plant embryo packaged along with a food supply within a protective coat |
| ovule | structure in seed plants in which the female gametophyte develops |
| angiosperm | group of plants that bears seeds that are enclosed in an ovary (fruit); flowering plant |
| flower | specialized plant shoot that functions in reproduction; unique to angiosperms |
| stamen | male reproductive organ of a flower |
| endosperm | nutrient-storing tissue that nourishes the developing embryo of a plant |
| fruit | ripened ovary of a flower |
