CROSSWORD PUZZLE

3. an animal that obtains its nutrition by eating primary consumers and secondary consumers
6. the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions
8. a process where carbon dioxide travels from the atmosphere into living organisms and the Earth, then back into the atmosphere
10. all parts of and around the planet Earth where life can be found

1. a kind of relationship where one member benefits (the parasite) and the other member is usually harmed (the host)
2. close and long-term relationships between different species
4. a group of organisms of a species that breed and live in the same place at the same time
5. an organism that mostly consumes decaying biomass, such as meat or rotting plant material
7. the non-living factors in an environment
9. an animal or insect that only eats plants