Ecology keywords

What does community mean?

• a biological community of interacting organisms and their physical environment

• the collection of different populations of species all co-existing in the same habitat at one time

• all organisms of the same species living in a habitat at one time

• the role of a species within an ecosystem

What is the definition for an ecosystem?

• the collection of different populations of species all co-existing in the same habitat at one time

• a biological community of interacting organisms and their physical environment

• an area or environment in which an organism naturally lives

• all organisms of the same species living in a habitat at one time

What is a niche?

• the relationship between different organisms within the same community and their dependence on each other for survival.

• all organisms of the same species living in a habitat at one time

• the role of a species within an ecosystem

• a biological community of interacting organisms and their physical environment

What is a habitat?

• an area or environment in which an organism naturally lives

• a biological community of interacting organisms and their physical environment

• the collection of different populations of species all co-existing in the same habitat at one time

• the relationship between different organisms within the same community and their dependence on each other for survival.

What is the definition of a population?

• an area or environment in which an organism naturally lives

• a biological community of interacting organisms and their physical environment

• an area or environment in which an organism naturally lives

• all organisms of the same species living in a habitat at one time

What does interdependence mean?

• an area or environment in which an organism naturally lives

• all organisms of the same species living in a habitat at one time

• the relationship between different organisms within the same community and their dependence on each other for survival.

• the role of a species within an ecosystem

What is a stable community?

• A community where the populations of the organisms continually change over time

• A community that has adapted to continual erratic weather conditions

• A community where the environment and species populations are generally the same year on year

• An area in a community where the populations of the organisms are declining (falling)

What is the definition of a species?

• a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding

• all the groups of organisms in a habitat

• groups of non-living elements in an ecosystem

What are abiotic factors?

• All the living parts of an ecosystem

• All of the non-living parts of an ecosystem

What are biotic factors?

• All of the living parts of an ecosystem

• All of the non-living parts of an ecosystem