Interactions of Living Things

the study of the interactions between organisms and their environment

the living factors in an environment

the nonliving factors in an environment

a group of individuals of the same species that live together in the same area at the same time

all of the populations of different species that live and interact in an area

made up of a community of organisms and its abiotic environment

the part of Earth where life exists

an organism that uses sunlight directly to make its own food

organisms that eat other organisms

organisms that only eat plants

organisms that only eat animals

organisms that eat both plant and animals

organisms that get energy by breaking down the remains of dead organisms

animals that feed on the bodies of dead animals

represents how energy in food molecules flow from one organism to another (energy flow in one direction)

many energy pathways in an ecosystem (shows energy flow in many directions)

a diagram shaped like a triangle that shows the loss of energy at each level of the food chain.

an environment where an organism lives

an organisms role or way of life in its ecosystem