Across
- 3. One species (the parasite) benefits and the other (the host) is harmed. Ex. Striga plant roots growing inside the host plant.
- 4. interactions between two or more organisms that need the same resource at the same time.
- 8. One species benefits from the relationship. The other is neither helped nor harmed. Ex. Bird nesting in a tree.
- 11. both species benefit from the relationship. Ex. Bees and flowers.
- 12. ________ capacity refers to the largest number of individuals of one species that an ecosystem can support over time.
- 13. the place within an ecosystem that provides the biotic and abiotic factors an organism needs to survive and reproduce.
- 14. when all the members of a population die or move away from an area.
Down
- 1. act of one organism, the predator, feeding on another organism, the prey.
- 2. all the populations living in an ecosystem at the same time.
- 5. all the organisms of the same species that live in the same area at the same time.
- 6. factor refers to all the living components in an ecosystem. Ex. Plants and animals.
- 7. a close, long-term relationship between two species that usually involves an exchange of food or energy.
- 9. the way a species interacts with abiotic and biotic factors to obtain food, find shelter and fulfill other needs.
- 10. factor refers to all the non-living components in an ecosystem. Ex. rocks and rivers.