Primates are distinguished from other mammals by having: A. longer pregnancies & periods of infant dependency. B. aquatic capabilities. C. shorter periods of dependence on parents. D. giving birth to live young

Option A

Longer pregnancies and periods of infancy dependent.

Explanation:

Primates are group of mammals that belong to order primates and are found all over the world.

Primates include lemurs, apes,gorilla, humans, monkeys e.t.c.

They have larger brains and reliance on visual acuity which is the dominant sensory system. Primates have longer period of growth between birth to adulthood and they have longer gestation periods compared to other mammals.

They have longer period of pregnancies e.g humans is 9 months and they take care of their infants till they grow and can provide for themselves.

The infancy depend on them for essentials of life and they are care giver.

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a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.