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Ecology Test Terms

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Across
5.A model of feeding relationships, describing the energy pathways possible in an ecosystem.
6.is an ecological relationship in which one species feeds on and often kills the other species.
10.An organism that eats both plants and animals
11.An animal that is killed and eaten by another animal.
14.is an ecological relationship in which multiple organisms are fighting for the same resources. (food, water, etc.)
15.are environmental factors that cause a population to stop growing or decrease in size.
16.The relationship between plants and animals that shows who eats what. Energy is transferred from one organism to another.
17.All the populations of different species that live in an ecosystem.
22.All the living organisms that live in an area and the nonliving features of their environment.
23.Animals who hunt and eat other animals; meat eater
24.Non-living parts of the environment; water, air, light, rocks
25.is a relationship in which two different species both benefit from the actions of each other.
26.an animal that kills and eats other animals.
27.Any living thing.
28.A representation of the loss of useful energy at each step in a food chain.
Down
1.Living parts of the environment; plants animals and microorganisms.
2.An organism, such as a plant or alga, which produces glucose from carbon dioxide by photosynthesis and is a source of food for other organisms.
3.Place where an organism lives and that provides the types of food, shelter, moisture, and temperature needed for survival.
4.Organism that cannot create energy-rich molecules (glucose) but obtains its food by eating other organisms.
6.is a relationship in which one organism benefits while the other is harmed.
7.eats only one type of food.
8.is a relationship in which one organism benefits and the other is unaffected.
9.All the organisms that belong to the same species living in a community.
12.eats a varied diet (more than one type of food).
13.An organism's place in the ecosystem: where it lives, what it consumes, and how it interacts with all biotic and abiotic factors. A unique ecological role of an organism in a community.
14.is the largest population that an environment can support.
18.is an ecological relationship that occurs between individuals of different species where at least one organism benefits. It also means "living together".
19.An animal that eats plants.
20.Part of Earth that supports life, including the top portion of Earth's crust, the atmosphere, and all the water on Earth's crust.
21.Study of the interactions that take place among organisms and their environment.

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