Across
- 3. Any necessity of life. Usually is the reason for competition.
- 4. An interaction which involves a species capturing and feeding on another species
- 5. Using sounds, scents, or markings to mark boundaries of an area which may physically be protected from other species
- 7. A type of response that is predictable because it is hardwired in the genetics of an organism
- 8. In nature a relationship in which one organism lives in or on another
Down
- 1. Two different species populations cannot occupy the same ecological niche at the same time
- 2. In nature a relationship in which one member is benefited and the other is neither harmed nor benefited
- 6. In nature a relationship in which both species benefit from the relationship