Across |
4. | Symbiosis that is beneficial to both organisms involved. |
5. | Organism that obtains energy by eating plants and animals. |
6. | Organism that is able to capture energy from sunlight or chemicals and use it to produce its own good from inorganic compounds. |
9. | Assemblage of different populations that live together in a defined area. |
10. | Symbiotic relationship in which one organism benefits and the other is neither helped nor harmed. |
11. | A position or role taken by a kind of organism within its community. |
12. | Total amount of living tissue within a given trophic level. |
17. | Each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy. |
20. | An animal that feeds on dead organic material. |
21. | The process by which the structure of a biological community evolves over time. |
22. | Any factor limiting the size of a population whose effect is dependent on the number of individuals in the population. |
24. | Organism that obtains energy by eating plants. |
25. | A community of animals, plants, living in a given area. |
26. | The branch of biology that deals with the relations of organisms to one another and to their physical surroundings. |
27. | A symbiotic relationship between two organisms in which one of them acts as predator and the other organism that serves as the prey. |
28. | Organism that obtains energy by making their own food. |
29. | Any living part of the environment with which an organism might interact. |