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A food chain demonstrates what different species of animals present in an ecosystem eat, and are eaten by. The start of the food chain is a producer - an organism which makes CTAnswered by Caroline T. • Biology tutor11332 Views
As a river moves through its upper course, it creates multiple erosional features such as waterfalls. The river moves over varying rock types, some harder and more resistant to erosion than others. The so...
Present Perfect
Finished past action: Il a cuisiné.
An action which lasted a certain amount of time: Elle a étudié au lycée pendant ...
They are "essere" (to be) and "avere" (to have).
Demand is the willingness or ability of a consumer to purchase something, at a certain price, at a certain time.
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