Unit 3 Vocabulary

4. above-ground part of a plant that includes the organs such as leaves, buds, stems, flowers (if the plant has any), and fruits (if the plant has any)
7. turning of all or part of an organism in a particular direction in response to an external stimulus
8. the body’s ability to keep the internal balance of the body stable
10. a change within the organism
12. pressure exerted by water inside the cell on the cell wall
14. growth that happens in organisms in response to gravity, such as the downward growth of plant roots
15. process of water moving through plants and evaporating from the leaves and stems into the atmosphere
16. balanced; unchanging
17. growth that happens in organisms in response to light, such as a stem bending toward a light source

1. a change in the position of an object
2. vascular tissue in plants that transports fluid through the plant
3. below-ground part of a plant that includes the organs such as roots, tubers, and rhizomes
5. a change in the environment outside of the organism
6. a push or pull that can change the position or motion of an object / material
9. conducting tissue in plants that transports nutrients through the plant
11. a response within a system that influences the activity of that system
13. a thing or event that causes a response or reaction