In my school the answer would be cell wall
Answer: Recognize levels of organization in plants and animals, including cells, tissues, organs, organ systems, and organisms. Plants also have tissues. Dermal tissue protects the plant and helps prevent water loss. Vascular tissue transports water, minerals, and food throughout the plant.
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I was doing some research and I would go with Venus if I understood that correctly
Answer:
Cell theory according to experts. ... schleiden and schwann prove that living cells are not empety rooms, but instead contain cytoplasmic fluids that support all the basic activities of living things. is the smallest structural and functional unit in living things
Answer:
essential amino acids are amino acids that can not be made by the body and only obtained in diet
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