An essential nutrient<span> is a </span>nutrient<span> that the body cannot synthesize on its own -- or not to an adequate amount -- and must be provided by the </span>diet<span>. These </span>nutrients are necessary<span> for the body to function properly. The six </span>essential nutrients<span> include carbohydrates, protein, fat, vitamins, minerals, and water.</span>
Answer:b. Examining conditions that are alike, natural selection is key when there arevery similar adaptations
c. there are not less than two different genes involved that created the dark mouse fur
d. two independent mutations in two separate genes can result in the same phenotype
e. the dark fur color evolved independently on each lava flow
Explanation:
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Whenever Mendel performed a cross with pea plants, he carefully categorized and counted the many offspring. Every time Mendel repeated a particular cross, obtained similar results. For example, whenever Mendel crossed two plants that were hybrid for stem height (Tt), about three fourths of the resulting plants were tall and about one fourth were short. Mendel realized that the principles of probability could be used to explain the results of genetic crosses.</span>
