this describes the feeding relationship and energy flow between species within an ecosystem

a group of interconnected food chains

the position an organism occupies in a food chain

a diagram that shows the amount of energy at each trophic level and how much energy is passed on to each trophic level.

the study of where organisms live

the very slow motion of the continents

the movement of organisms and their seeds from one place to another

species that have naturally evolved in an area over a long period of time

an organism that is carried into a new location where it is not normally found (sometimes called an exotic species)

This law states that the total amount of matter remains constant during changes in matter. The mass of the reactants will always equal the mass of the product.

This law states that energy can never be created or destroyed in ordinary processes. Energy can change forms, but it is neither created nor destroyed.

The 4th consumer in a food chain is called a...

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