Across
- 3. an organism that lives on or in a host, taking food or shelter from the host the; the host gets nothing in return and may be harmed
- 6. an interaction in which one type of organism (the parasite) lives on or in another type of organism (the host); the host is usually harmed or even killed
- 9. factors non-living factors in the environment
- 11. the place where all life exists; consists of earth and its atmosphere
- 12. depending on each other for survival
- 13. another name for interdependence
- 15. an organism in or on which a parasite lives
- 16. a system formed by organisms interacting with each other and with their non-living surroundings in a balanced way
- 17. and interaction between two organisms in which one of them benefits but the other one is not affected
Down
- 1. all living things
- 2. the place where an organism lives
- 4. an interaction between organisms in which both the organisms benefit from the relationship and neither is harmed
- 5. active or hunting at night
- 7. scientists who study the interactions between living things and their environment
- 8. the term used to describe all the conditions that affect a plant or animal in its habitat
- 10. characteristics that help an organism to survive in its environment
- 14. factors living factors in the environment