The primates share several characteristics, which distinguish them from all other mammalian orders. Check all of the unique features that one would use to classify members into this order. a. embryonic development is often assisted by a placenta

b. specialized teeth

c. an opposable thumb

a large and well-developed brain

d. hair

e. binocular vision

The correct answer is an opposable thumb, large and well developed brain, and binocular vision.

Explanation:

A primate refers to a member of the mammalian order Primates that constitute two suborders, that is, the anthropoids (apes, monkeys, and human beings) and the prosimians (lorises, lemurs, and tarsiers).

The behavioral and anatomical characteristics, which differentiate primates from other mammalian orders comprise an absence of strong specialization in composition, that is, prehensile feet and hands, generally with great toes and opposable thumbs.

Apart from this, the primates comprise flattened nails in place of claws, acute vision with binocular vision, and comparatively bigger brain demonstrating the extent of cortical folding.