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2.15 Lab Exercise

2.15 Lab Exercise

Q Question 1 0.4 / 0.4 pts How would you tell the difference between an Old World monkey and an ape? List three features found in apes but NOT monkeys. Question 2 0.4 / 0.4 pts List three characteristics found in Old World monkeys, and not in NWM. Note if the trait is true of all or only some of the OWM. Question 3 0.4 / 0.4 pts List three specific characteristics found in ALL primates that are absent in other mammals.

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1.Your Answer: Old World monkeys move on all fours on the ground. They also have Ischial callosities which are, tough sitting pads on the rear. Three features found in apes but not monkeys are the Y-5 molar pattern, diverse patterns of locomotion, and no tail. 2.Your Answer: 1. Dental Formula = 2:1:2:3 2. Bony ear tube present. 3. Higher Levels of sexual dimorphism (more competition for food/mates) True for all.