Answer:
receptor down-regulation
Explanation:
Downregulation is a control mechanism by which a cell decreases the amount of a cellular component, such as RNA or protein, in response to an external variable. In contrast, a reactive increase of a cellular component is called upregulation. An example of downregulation occurs when insulin binds to its receptor and the complex is endocyted in the cell in response to hormonal signaling.
Sunlight from the sun hits the leaf of the plant.
The answer is none. carbon has a symbol (c) but there is no symbol for carbohydrates because its not a chemical compound.for example fats or vitamins or minerals
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A serous membrane contains both epithelial and connective tissue