The cuticle and medulla can be important for distinguishing between hairs of different , but often does not lend much important information to the differentiation between hairs from different .

Species / People.

Explanation:

The hairs are made up of three distinct layers which are cuticle, medulla and cortex. Cuticle is the outer layer in the medulla is located at the center. The cuticle and medulla can help in distinguishing hairs among different species since their properties are much different but they do not offer too much information for distinguishing hairs between to organism from the same species like two people.

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the calvin cycle has three stages. in stage 1, the enzyme rubisco incorporates carbon dioxide into an organic molecule. in stage 2, the organic molecule is reduced. in stage 3, rubp, the molecule that starts the cycle, is regenerated so that the cycle can continue

i would go with b

cytokinesis occurs after telophase so that eliminates d

and the entire reason for cytokinesis is for cellular reproduction