Ch.1 Vocabulary Crossword

3. When individuals move into a population from another area.
6. The study of how living things interact with each other and their environment.
7. A(n)____factor is a living part of the environment, like plants, animals, or bacteria.
9. The role or job an organism has in its habitat.
10. A relationship where one species benefits and the other is harmed.
12. An animal that hunts and eats other animals.
13. The process plants use to make food using sunlight, water, and carbon dioxide.
14. A trait or behavior that helps a living thing survive in its environment.
18. The ____ rate is the number of deaths in a population over a certain period of time.
20. The natural home or environment of a plant or animal.
21. A community of living things and their non-living environment working together.
22. When two or more organisms try to use the same resource, like food or space.
24. All the different populations of plants and animals living together in an area.
27. The maximum number of animals or plants that an environment can support without damage is carrying_____.
28. An animal that is hunted and eaten by another animal.

1. Population ___ is number of individuals of a species living in a certain area.
2. Something that keeps a population from growing too large, like food, water, or space is a ___ factor.
4. A relationship where both species benefit.
5. A relationship where one species benefits, and the other is neither helped nor harmed.
6. When individuals leave a population to live somewhere else.
8. rate The number of births in a population over a certain period of time.
11. A careful guess or calculation about a number or amount.
15. A(n)____factor is a non-living part of the environment, such as sunlight, water, or temperature.
16. Natural ____ is the process where organisms better suited to their environment survive and reproduce more.
17. The process where one animal hunts and eats another.
19. An organism that a parasite lives on or in and gets food from.
23. All the members of the same species living in one area.
25. A group of similar organisms that can mate and have babies that can also reproduce.
26. A close relationship between two different species that live together.