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Science H/W

1. Ecology the study of how living things interact with each other and their environment
2. Ecologist a scientist who studies ecology
4. Biotic Factor the living part of an ecosystem
5. Abiotic Factor the nonliving parts of an ecosystem
6. Populations all the members of one species in a particular area
7. Communities all the different populations that live together in an area
8. Population Density the number of individuals in a specific area
9. Immigration moving into a population
10. Emigration leaving a population
11. Limiting Factors an environmental factor that prevents a population from increasing
12. Carrying Capacity the largest population that an environment can support
13. Niche an organism’s particular role, or how it makes its living. A niche includes the activities and behaviors that help it satisfy the need for food, water, living space, and reproduction
14. Competition the struggle between organisms to survive in a habitat with limited resources
15. Predation an interaction in which one organism hunts and kills another for food
16. Predator an animal that hunts and kills other animals for food
17. Prey an animal that a predator feeds upon
18. Symbiosis a close relationship between two species that benefits at least one species
19. Mutualism a relationship in which both species benefit
20. Commensalism A relationship in which one species benefits and the other species is neither helped nor harmed
21. Parasitism It involves one organism living on or inside another organism and harming it. A parasite lives on or in a host
22. Producer an organism that can make its own food
23. Consumer an organism that obtains energy by feeding on other organisms
24. Herbivore an animal that eats only plants
24. Herbivore an animal that eats only other animals
26. Omnivore an animal that eats both plants and other animals
27. Scavenger an animal that feeds on the remains of decaying organisms
28. Decomposer an organism that obtains energy by feeding on other organisms
29. Food Chain a series of events in which one organism eats another and obtains energy. It shows one way energy flows through an ecosystem
30. Food Web the pattern of overlapping food chains in an ecosystem. It shows various ways energy can move through an ecosystem
31. Energy Pyramid a diagram that shows the amount of energy that moves from one feeding level to another in a food chain
32. Water Cycle - the processes of evaporation, condensation, and precipitation that recycles our water supply
33. Evaporation the process by which molecules of a liquid absorb energy and change to the gas state
34. Condensation a gas changes to a liquid
35. Precipitation rain, snow, sleet or hail that falls from the sky
36. Transpiration evaporation of water from the leaves of a plant
37. Carbon and Oxygen The producers use the carbon from the carbon dioxide they take in to produce other carbon containing molecules. They give off oxygen which the consumers take in
38. Nitrogen Cycle nitrogen moves from the air to the soil, into living things, and back into the air
39. Nitrogen Fixation the process of changing free nitrogen gas into a usable form of nitrogen
Created by: Yumo_SPMS