| A | B |
|---|
| angiosperms | flowering plants |
| flowers | reproductive structures produced by angiosperm |
| dispersed | scattered |
| cotyledons | tiny embrionic leaves inside of the angiosperm |
| monocot | a seed plant with one seed leaf, or cotyledon |
| dicot | a seed plant with two seed leaves, or cotyledons |
| receptacle | an enlarged tip of the stem the supports the flower |
| petals | brightly colored, modified leaves that surround the reproductive organs of a flower |
| sepals | one of the outermost flower structures; a modified leaf that encloses the flower before it opens |
| stamen | the male reproductive structure of a flower |
| anther | the part of the flower stamen that bears pollen |
| pollen | grains produced from anther sacs |
| pistil | female reproductive structure in the middle of the flower |
| ovary | the female reproductive organ |
| ovule | a structure in the ovary that becomes a seed after fertilization |
| seeds | a multicellular structure containing a diploid embryonic pland a food supply protected by a seed coat |
| style | the tubular structure above the ovary |
| stigma | the tip of a pistil, where pollen first collects |
| pollination | the process in which pollen moves from an anther to a stigma |
| pollinators | a variety of agents that move pollen from one plant to another |
| pollen tube | the extension of the pollen grain through which sperm nuclei travel to the egg |
| sperm nuclei | two haploid nuclei produced from the generative nucleus in the pollen tube |
| double fertilization | in angiosperms, a type of fertilization in which the sperm nucleus fertilizes the egg and the other fertilizes the polar nuclei |
| endosperm | a triploid tissue containing stored food for the embryonic plant within a seed |
| simple fruits | fruits that develop from a singe flower |
| aggregate fruits | fruits that develop from many different ovaries in a single flower |
| multiple fruits | develop from single ovaries of each flower in a cluster |
| gymnosperms | all seed plants that do not form flowers |
| conifers | type of conifer; cone-bearing woody trees and shrubs |
| pollen cones | a male reproductive structure of the conifers containing pollen-producing microsporangia |
| seed cones | a female reproductive structure of the conifers containing spore-producing megasporangia |
| deciduous | losing their leaves in the autumn |
