Unit 3 Vocabulary

2. a change in the environment outside of the organism
5. pressure exerted by water inside the cell on the cell wall
7. 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)
8. vascular tissue in plants that transports fluid through the plant
9. a change in the position of an object
11. below-ground part of a plant that includes the organs such as roots, tubers, and rhizomes
15. the body’s ability to keep the internal balance of the body stable
17. turning of all or part of an organism in a particular direction in response to an external stimulus

1. a change within the organism
3. a thing or event that causes a response or reaction
4. growth that happens in organisms in response to light, such as a stem bending toward a light source
6. a response within a system that influences the activity of that system
10. conducting tissue in plants that transports nutrients through the plant
12. process of water moving through plants and evaporating from the leaves and stems into the atmosphere
13. growth that happens in organisms in response to gravity, such as the downward growth of plant roots
14. a push or pull that can change the position or motion of an object / material
16. balanced; unchanging