If ancestral humans did not develop an opposable thumb, grasping fingers, and binocular vision, how might their history have differed?

A. They would have been less able to occupy the trees.
B. They would have been unable to develop spoken language.
C. They would have been less able to walk upright.
D. They would have been unable to survive without changing their diet.


A. They would have been less able to occupy the trees.

Biology & Microbiology

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Transmembrane movement of a substance up a concentration gradient requires ________ transport

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In some chordates, the ________ is (are) replaced by ________.

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Which of the following is not one of the six steps of the scientific method?

A. Gather market research data B. Ask a question C. Conduct an experiment D. Communicate the findings

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