What basic similarities among mammals

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Q1. What basic similarities among mammals and differences between mammals (the ingroup) and reptiles (an outgroup) help support the hypothesis that all mammals share a common ancestor?

Q2. A person is to be fitted with bifocals. She can see clearly when the object is between 43 cm and 1.5 m from the eye. The upper portions of the bifocals should be designed to enable her to see distant objects clearly. What power should they have? Reply in units of dioptres.

Reference no: EM136881

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