The answer is plants. Plants are at the start of the food chain :)
The statement that suggests that the shape of an enzyme determines its function, would be the fact that enzymes are specific to certain substrates, depending on the particular shape of an enzyme it can allow binding to specific substrates and allow for catalyzing that corresponding reaction.
The answer is A: a flagship species.
Hope this helps :)
The scientist that discovered cells by observing cork with a homemade microscope would be Robert Hooke.
Answer: sea floor (at the very bottom of the ocean)
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