Answer:
Topic Pyramid-
Explanation:
the basic structure of interaction in all biological communities characterized by the manner in which food energy is passed from one trophic level to the next along the food chain.
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Cells of various types have different functions because cell structure and function are closely related. It is apparent that a cell that is very thin is not well suited for a protective function.
Answer: A scientific question can be answered through an investigation. What is tested? Scientists call this an independent variable.
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What was the investigation? But from my best guess I'm assuming it's the second option. This may be incorrect.
