They acquire energy by consuming other species which is one level less in that corresponding trophic level.....
Hypothesis: It is basically a prediction of what an experiment will do. You are making a scientific guess to what is going to happen. After you make a hypothesis you will perform a experiment to test your hypothesis and to see whether your hypothesis was right or not. If it is then you are good to go (move on to make a data) if not then you have to do the project over again.
Research/ Experiment: Usually researching and experimenting are different kind of things but experimenting is basically what i said in the Hypothesis area, you are testing to see if your hypothesis is right or wrong. Usually researching means you are finding a source for your project. (Using source is a main thing when creating a project).
Last by not least theory: Theory is different from predictions or hypothesis. A theory is a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained. Example: My theory for the big bang theory is... and you put your theory in it.
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Renewable resources are so abundant or are replaced so rapidly that, for all practical purposes, they can't run out. ... Renewable resources include solar, wind, hydro, and (possibly) biomass.
Answer:
Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. ... Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs.
Explanation: