5/6 Science Ch. 4 Ecosystems

an organism that must eat other organisms to get energy

a relationship between two kinds of organisms that lasts over time

the living and nonliving things in an area

all the same kind of organisms that live in a certain place

a biome that is dry, with cool nights

all the populations in the same ecosystem

a model that shows how energy moves through a chain

an ecosystem where rivers and oceans meet

this biome is a cool forest of evergreen trees

the process in which one community slowly replaces another community

in this kind of relationship, one organism benefits while the other is harmed

a cold, dry biome that is near the north pole and has permafrost

a living part of an ecosystem

a community in which succession has slowed down or almost stopped

no longer existing anywhere on earth

a region that has a certain climate and certain plants and animals

a living thing that hunts and kills other living things for food

an ecosystem such as marshes, swamps, and bogs

in this kind of a relationship, one organism benefits, the other is neither helped nor harmed

a model that shows how energy in food passes from one organism to another in an ecosystem

something that controls the size or growth of a population

a nonliving part of an ecosystem

a model that shows how food chains in an ecosystem overlap, or are connected

an organism that uses the Sun's energy to make its own food through photosynthesis

an animal that eats dead animals that it did not hunt or kill

in this kind of relationship, both organisms benefit

a new community that was made in an area that was lifeless

the process in which one community slowly replaces another community