How Was the Distribution of Humans (After They Evolved)affected by Continental

question 91

Multiple Choice

How was the distribution of humans (after they evolved) affected by continental drift?

• A) The supercontinent of Pangaea had not yet split up before humans evolved. This made it very easy for humans to travel over the entire landmass of Earth.
• B) The supercontinent of Pangaea had already begun to split up, but the continents were still very close together, making it easy for humans to travel from one continent to another.
• C) The supercontinent of Pangaea had not yet split up before humans evolved. This had little impact on the distribution of humans because they did not travel until the 1400s.
• D) The supercontinent of Pangaea split apart and the resulting continents were in their present-day locations by the time modern humans evolved. This would have slowed the distribution of humans until they developed ways of easily traveling the oceans.

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Definitions:

Labyrinthitis

An inner ear disorder that causes inflammation of the labyrinth, leading to vertigo and hearing loss.

Acoustic

Pertaining to sound or the science of sound, especially its production, transmission, and effects.

Myringectomy

A surgical procedure involving the removal of part of the eardrum to treat conditions such as chronic infections or to insert tympanic tubes.

Myringotomy

A surgical procedure to make a tiny cut in the eardrum to relieve pressure caused by excessive fluid accumulation or to insert a tympanostomy tube.