| A | B |
| petals | brightly colored structures inside the sepals |
| sepal | small leaf-like structures attached to the receptacle of the flower |
| pistil | the female reproductive structure of the flower |
| ovary | structure on the pistil containing ovules |
| seed | a structure containing an embryo, food and a coat |
| style | connecting stalk between the stigma and the ovary |
| ovules | reproductive structure that becomes a seed after fertilization |
| fruit | an enlarged, ripened ovary that contains one or more seeds |
| anther | part of the stamen where pollen grains are produced |
| stigma | upper part of the pistil where pollen grains land |
| stamen | male reproductive structure in a flower |
| flower | reproductive structure of an angiosperm |
| calyx | all the sepals together |
| filament | long stalk that attaches the anther to the receptacle |
| corolla | all the petals together |
| complete flower | contains all four whorls or layers - sepals, petals, stamen and pistil |
| incomplete flower | missing one or more of the four whorls |
| perfect flower | contains both male and female reproductive structures |
| imperfect flower | contains only male or female reproductive structure |
| cross pollination | pollen form one plant pollinates another plant |
| self pollination | pollen from the same plant lands on the stigma of that plant |