Answer: Basically cells make up tissues, tissues make up organs, and organs make up organ systems.
Explanation:
Explanation:
the total mass of all the organisms in a representative area of the ecosystem C. the total mass of all the organisms in the ecosystem D. the number of organisms in each trophic level of the food web. leticiasilvacos is waiting for your help.
Ribosomes. Ribosomes which synthesize proteins are found in the rough endoplasmic reticulum.
The answer is the back of the embryo.
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