| A | B |
|---|
| cotyledon | a seed leaf that stores food |
| embryo | a young plant that developes from a zygote |
| fertilization | the joining of a sperm cell and an egg cell |
| flower | the reproductive structure of an angiosprem |
| fruit | the ripened ovary and other structures that enclose one or more seeds of an angiosperm |
| hormone | a chemical that affects a plant's growth and developement |
| ovule | a plant structure in seed plants that contains an egg cell |
| pistil | the female reproductive parts of a flower |
| pollen | the tiny particles produced by plants that contain the microscopic cells that later become sperm cells |
| seed | the plant structure that contains a young plant inside a protective covering |
| stamen | the male reproductive parts of a flower |
| stomata | the small openings on the undersides of most leaves through which oxygen and carbon dioxide can move |
| tropism | the growth response of a plant toward or away from a stimulus |
| vascular tissue | the internal transporting tissue in some plants that is made up of tubelike structures |
| zygote | a fertilized egg, produced by the joining of a sperm and an egg |
