Across
- 6. The variety of life in an area or ecosystem
- 7. A group of organisms that can interbreed and produce fertile offspring
- 10. A large area defined by similar ecosystems and climate
- 11. The study of interactions between organisms and their environment
Down
- 1. A system of interacting organisms and their environment
- 2. The natural environment where an organism lives
- 3. The geographic range where a species occurs
- 4. The number of individuals of a species in an area
- 5. A group of individuals of the same species in one area
- 8. A large herbivorous mammal with a trunk and tusks
- 9. All populations of different species in an area