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Answer:
Explanation:Compounds which have carbon and hydrogen atoms in their structure or formula are known as organic compounds. For example, a molecule of is organic because it has carbon and hydrogen atom in its formula. ... Thus, we can conclude that an organic molecule will always contain carbon and hydrogen
A target cell respond to a hormone because it bears receptors
This might help:
https://quizlet.com/1965478/environmental-health-test-1-flash-cards/