| A | B |
|---|
| dormant | living but inactive |
| seed coat | outer covering of a seed |
| germination | start of growth and development in a seed |
| cotyledon | starchy material that provides energy for the developing plant |
| embryo | part of a seed that grows into a new plant |
| stomata | allows gases and water vapor to go in and out of a leaf |
| photosynthesis | process plants use to produce energy |
| chlorophyll | green pigment |
| chloroplasts | structure that helps produce energy in a plant |
| geotropism | growth of a plant based on gravity |
| phototropism | tendency of plants to grow towards sunlight |
| thermotropism | plants grow towards or away from heat |
| pollination | transfer of pollen grains from one flower to another |
| regeneration | new growth of organs or tissues that have been lost or injured |
| cell division | one parent cell separates into two daughter cells |
| propagation | part of a plant can be cut off and rooted to form a new plant |
| sperm | male sex cell |
| egg | female sex cell |
| pistil | female part of a flower |
| stamen | male part of a flower |
| fertilization | the male and female sex cells unite to form a single cell |
| seed dispersal | process of plants spreading their seeds out |
| asexual reproduction | does not require male and female cells |
| sexual reproduction | requires that a male sex cell and a female sex cell join together |
