| A | B |
|---|
| flagellated | having one or more flagellum that propel a cell by whiplike motion |
| vegetative reproduction | asexual reproduction in which new plants grow from parts of an existing plant |
| chemotaxis | movement of a cell or organism in response to a particular chemical |
| protonema | small, threadlike structure produced by mosses that can develop into the gametophyte plant |
| prothallus | heart shaped, tiny fern gametophyte |
| heterosporous | able to produce two types of spores - megaspores and microspores - that develop into female and male gametophytes |
| megaspore | spore that develops into a female gametophyte and is produced by a conifer’s female cone |
| microspore | spore that develops into a male gametophyte (a pollen grain) and is produced by a conifer’s male cone |
| micropyle | opening of a conifer’s ovule where a pollen grain can be trapped in a pollen drop |
