Ecology Basics Test QTI

A community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.

• community

• ecosystem

• organism

• species

Tags

NGSS.MS-LS2-3

A diagram that compares energy used by the different trophic levels.

• ecological pyramid

• energy pyramid

• numbers pyramid

• trophic level

Tags

NGSS.MS-LS2-3

A graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.

• ecological pyramid

• energy pyramid

• numbers pyramid

• trophic level

Tags

NGSS.MS-LS2-3

A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

• community

• ecosystem

• organism

• species

A group of the same species that live in a particular area.

• community

• keystone species

• population

• species

A keystone species is a species that

• goes unnoticed if its numbers decrease.

• alters an area by building bridges and dams.

• leads to a decrease in an area's biodiversity.

• has an unusually large impact on its ecosystem

Tags

NGSS.MS-LS2-4

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

• biomass

• food chain

• food web

• trophic level

Tags

NGSS.MS-LS2-3

A living thing belonging to a particular species.

• community

• ecosystem

• organism

• species

A measure of the total dry mass of organisms in a given area.

• biomass

• food chain

• food web

• trophic level

Tags

NGSS.MS-LS2-3

A model that shows a single sequence of feeding relationships is called a

• trophic level

• food chain

• food web

• feeding chain