Ecosystem Organisms

An interdependent relationship is one where two species need each other to _______

The position of an organism in a food chain is called its ________

A chart showing the number of organisms at each trophic level is called a _______

Producer (autotroph): An organism which makes its own ______. Green plants make their own food by photosynthesis. Chemosynthetic organisms make their food using chemical energy.

Consumer (heterotroph): an organism that takes in ______ from another organism.

Herbivore: an animal which eats ______ only e.g., rabbit, greenfly, honeybee.

An organism that feeds on dead organic matter is called a ______.

An animal that feeds on primary consumers is called a ______.

An animal that feeds on secondary consumers is called a ______.

An organism which eats both plants and animals is called an ______.

An organism which eats meat only is called a ______.

An organism which eats plants only is called a ______.

An organism that makes its own food is called a ______.

An organism's functional role in its habitat is called its _______

A food web consists of two or more interconnected _______ chains

The position of an organism in a food chain is called its _______

A pyramid of numbers shows the number of organisms at each _______ level

Organisms usually increase in size as you move up a pyramid of numbers because they need to feed on a greater _______ of organisms

When organism size is not considered, an _______ food pyramid may occur

No two species can occupy the same _______ for any length of time

Competition between species in the same niche can result in one species _______ the other