Elt Crossword

2. The part of the Earth where life exists.
8. The study of how living organisms interact with each other and their environment.
9. The act of one organism killing and eating another organism.
10. Living factors in an ecosystem.
14. a mutually beneficial relationship between different people or groups.
15. The natural environment in which an organism lives.
16. A relationship between two organisms where both benefit.
17. A group of populations living and interacting with each other in a specific area.
18. Relating to the feeding and nutrition of organisms.
19. The role or function of an organism in an ecosystem.

1. A relationship between two organisms where one benefits and the other is neither helped nor harmed.
3. A relationship between two organisms where one benefits and the other is harmed.
4. All the living and non-living things in a specific area and their interactions.
5. Dead organic matter that serves as a source of food and energy for living organisms.
6. A group of individuals of the same species living in the same area.
7. An organism that obtains its food by consuming other organisms.
10. The total mass of living matter in a specific area.
11. An organism that produces its own food.
12. Non-living factors in an ecosystem.
13. A large geographical region with distinct plant and animal groups adapted to that environment.