Cell-surface receptors are involved in most of the signaling in multicellular organisms. There are three general categories of cell-surface receptors: ion channel-linked receptors, G-protein-linked receptors, and enzyme-linked receptors.
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The role of rainforests in the water cycle is to add water to the atmosphere through the process of transpiration (in which plants release water from their leaves during photosynthesis). This moisture contributes to the formation of rain clouds, which release the water back onto the rainforest.
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because they are bigger witch means more cells
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they are bigger witch means more cells and the smaller animals have less cells and r always on the run from predators so they need to contently change to live
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To organize, and keep science organized
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