| A | B |
| rhizoid | hairlike fibers that anchor mosses in place |
| most common plants grow from . . . | seeds |
| mosses, liverworts, and ferns grow from . . . | spores |
| how are spores spread around a fern? | spore cases pop open |
| what do plant seeds contain? | underdeveloped plant and stored feed |
| angiosperms | seed plants that produce flowers |
| gymnosperms | seed plants that do not flower |
| largest division in the plant kingdom | angiosperms |
| has 235,000 different members | angiosperms - as the largest division in the plant kingdom |
| parasites | angiosperms that live off of other plants |
| classes of angiosperms | monocots and dicots |
| complete flower | sepals, petals, stamens, and pistils |
| perfect flower | has both male and female parts |
| female flower | has pistils, is imperfect |
| male flower | has stamen |
| three main parts of a seed | embryo, seed coat, and cotyledon |
| to grow a new plant from seed you need . . . . | seed dispersal and germination |
| cotyledon | where food is stored as starch |
| seed coat | tough covering or outer layer |
| embryo | immature plant |
| stimulus | things that produce a response, like light or heat |
| when a plant moves away from a stimulus | tropism |
| when a plant responds to changes in light | phototropism |
| when the roots of a willow tree grow towards water | hydrotropism |
| auxin | chemicals used to stimulate plant growth |
| plants compete with each other for . . . | sunlight, water, and nutrients |