Unit 9 Vocabulary

5. The role and position of an organism in its environment
6. A close relationship between two different species
8. The female reproductive part of a flower
9. A change in the environment that causes a response
10. An organism's reaction to a stimulus
12. The tube-like structure that connects the stigma to the ovary
19. Plants with specialized tissues (xylem and phloem) for moving water and nutrients
21. A group of organisms of the same species living in the same area
23. An organism that eats other organisms
24. Different populations living and interacting in the same area
26. The community of organisms and their physical environment

1. The maintenance of stable internal conditions in an organism
2. An organism that breaks down dead matter
3. The feeding positions in a food chain
4. The outer protective layer of plant tissue
7. A microorganism (like bacteria or viruses) that can cause disease
11. Tiny pores in leaves that allow gas exchange
13. The stalk that supports the anther
14. An organism that makes its own food through photosynthesis
15. Plant tissue that carries food (sugars) throughout the plant
16. The male reproductive part of a flower
17. A chemical messenger that travels through the bloodstream to control body functions
18. cell Specialized cells that control the opening and closing of stomata
20. The part of the stamen that produces pollen
22. The top of the pistil where pollen lands
25. plant tissue that transports water and minerals from roots to other parts