Answer:
Cell,tissue, organ, organ system, Organism
Explanation:
because cells make tissues and tissues make organs and many organs make organ systems.
<span>The first great discovery of genetics happened In 1865, when Gregor Mendel published a paper on his study of inherited traits in plants. He is often called the founder of genetics.
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One. Chlorine in its normal state has seven valence electrons.
The correct answer is carboxyl group.
<span>The carboxyl group is an organic functional group consisting of a carbon atom double bonded to an oxygen atom and single bonded to a hydroxyl group (COOH). It is the main functional group of carboxylic acid. Carboxylic acids are found in acetic acid and the amino acids that are used to build proteins.</span>
