| A | B |
|---|
| Chemical Control | Coordinates body processes by transmitting messages from one part of the organism to another; achieved through hormonal action in both plants and animals |
| Auxins | Type of plant hormone; influence division, elongation, and differentiation of plant cells |
| Tropisms | Unequal growth responses caused by unequal distribution of auxins |
| Two Types of Tropisms | Phototropism and geotropism |
| Phototropism | Growth of a plant towards light due to unequal distribution of auxins |
| Geotropism | Growth of a plant due to gravity |
| Endocrine Glands | Synthesize and secrete hormones which control the activities of animals |
| Hormones | Chemicals secreted in one area of the body which affect responses in other areas |
| Metamorphosis | The development in an animal larva that transforms into a sexually mature adult |
