Topic 1 Vocab

5. Reproduction involving one organism that produces offspring with genetic information like the parent.
7. A behavior an organism is born able to perform.
9. One form of a gene.
11. A plant structure that develops from a flower and often protects seeds.
13. A section of genetic material that contains information for a trait.
16. A chemical messenger made by an organism that affects body processes or behavior.
17. System The pattern describing how organisms choose or pair with reproductive partners.
18. A characteristic of an organism, such as flower color or a behavior.
21. The regular movement of organisms from one place to another.
22. An organism’s response to the length of daylight and darkness.
23. A major change in body form during an organism’s development.

1. The way an organism acts or responds.
2. A period when an organism’s growth and activity slow greatly.
3. The beginning of growth of a seed.
4. The transfer of pollen to the part of a plant where fertilization can occur.
5. A plant hormone that helps control growth and the direction of plant growth.
6. A structure in a plant that can develop into a seed after fertilization.
8. Reproduction involving genetic information from two organisms.
10. The passing of traits from parents to offspring.
12. Reproductive structures on some plants, such as pine trees, that produce or hold reproductive cells.
14. The joining of reproductive cells to begin the development of a new organism.
15. The first cell formed after fertilization.
19. A chemical signal released by an organism that affects another organism of the same species.
20. A plant’s growth response to a stimulus, such as light or gravity.