Can survive in a variety of environments.

A population that's very presence and numbers reflect on the level of health of an ecosystem.

Have a crucial role in survival of a particular community.

A close relationship between two species that benefits at least one of the species.

An interaction in which one organism kills another for food.

Interaction among organisms that vie for the same resource in an ecosystem (food, living space etc)

A relationship between two species in which both species benefit

A relationship between two organisms in which one organism benefits and the other is unaffected

A relationship between two organisms of different species where one benefits and the other is harmed

A living thing

A group of individuals that belong to the same species AND live in the same area

A group of interdependent organisms inhabiting the same region and interacting with each other in different ways.

Organisms moving into a population

Organisms leaving a population

the number of births in a population in a certain amount of time

number of deaths from a disease in relation to the population in a given time

An animal that eats BOTH plants and animals

A consumer that eats ONLY plants.

A consumer that eats ONLY animals.

Animals that carry pathogens from person to person

An organism that causes disease

to feed on growing grass

either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement

tall trees with wide leaves found in a rainforest

to live underground

(n.) a hiding place; something hidden or stored

an animal with sharp teeth for gnawing

different

to scatter, spread far and wide

the quality or state of being able to move about freely

the remains of something that has been destroyed

anything that feeds or helps to make grow

to gain or receive good results from something