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| alternation of generations | plant life cycles have two alteranting phases, one sexual and one asexual. This type of life cycle is called __________________ |
| spores | During asexual phase, moss plants form capsules that contain ___________________ |
| fertilization | __________________ occurs in seedless plants when rainwater carries sperm to egg cells during the sexual phase of plants |
| stamen | the male part of a flower |
| pistil | the female part of a flower |
| anther | found at the top of the filament; produces pollen grains, which contain sperm cells |
| ovary | The pistil is made up of a stigma, a style, and an ___________________ which contains egg cells |
| incomplete flower | _____________ is missing one or more of the flower parts of a complete flower |
| filament | thin stalk portion of the stamen |
| complete flower | __________ has all of the four main parts: petals, sepals, stamens, and pistils |
| petals | brightly colored outer parts of a flower |
| flowers | the reproductive organs of angiosperms |
| sepals | cover and protect the flower's parts when it is a bud |
| stigma | opening at the top of the pistil |
| style | long necklike structure that leads down to the ovary |
| perfect flower | has both stamen and pistil - the male and female parts |
| imperfect flower | lacks either a stamen or pistil; are either male or female |
| pollination | the transfer of pollen from the stamen to the pistil |
| pollen | a yellow powder that contains sperm cells |
| nectar | a sweet liquid produced by flowers to attract pollinators |
| style | After pollination, sperm cells from pollen move down the ___________of the pistil to the ovary |
| Fruit | As a seed develops, the ovary enlarges until it becomes a ______________ |
| cotyledon | the food supply that surrounds the embryo contained in a seed |
| germination | the development of a seed into a need plant |
| monocot | a plant which produces seeds with a single cotyledon; leaves show parallel vein pattern |
| dicot | a plant that produces seeds with two cotyledons; leaves show a branched vein pattern |
| conifers | cone-bearing plants , such as pines and firs ( gymnosperms) |
| female cone | After a conifer egg is fertilized, it develops into a seed on the ______________ |
