| A | B |
| pollen grain | structure that contains the male gametophyte in seed plants |
| pollination | transfer of pollen from the anther of a stamen to the stigma of a pistil |
| embryo | organism at an early stage of delvelopment |
| seed coat | structure that surrounds a plant embryo and protects it |
| scale | specialized reproductive structure in gymnosperm that forms male/female cones |
| gymnosperm | plant known as a naked seed plant because its seeds dont develop w/in ovaries |
| pollen cone | male cone in gymnosperm that produces male gametophytes in form of pollen grains |
| angiosperm | flowering plant whose seed develop w/in ovaries |
| flower | reproductive structure in an organism |
| fruit | protective structure formed from an enlarged ovary wall that contains angiosperm seeds |
| monocot | angiosperm whose seeds have one cotyledon |
| dicot | angiosperm whose seed has two cotyledons |
| vascular bundle | strand of xylem and phloem cells |
| coevolution | processby which 2 organisms evolve structures and behaviors in response to changes in each other |
| vector pollination | pollination by the actions of animals |
| seed dispersal | process of distributing seeds away from the parent plant |