Consider That Fossils of Homo Erectus Dating Between 1

question 45

Multiple Choice

Consider that fossils of Homo erectus dating between 1.66 to 1.85 mya have been found scattered across Eastern Europe through China and Southeast Asia and dating back to 2.4 mya in Africa.The earliest known specimens of anatomically modern Homo sapiens in Africa date back to roughly 200,000 years ago and 40,000 to 60,000 years ago across Europe and Asia with some at 115,000 years ago in India.Additionally,Homo neanderthalensis was present across Europe by 150,000 years ago and then spread into western Asia.What does this suggest about the "out-of-Africa" hypothesis?

• A)This suggests that hominins migrated north from Africa spreading out across Europe and Asia at least twice.
• B)This suggests that hominins migrated north from Africa spreading out across Europe and Asia three times.
• C)This suggests that there was only one major migration of hominins out of Africa.
• D)This suggests that there must have been at least seven major migrations of hominins out of Africa.

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Costs that vary directly with the level of production, such as materials and labor.

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The sum of all costs that remain constant regardless of the level of production or sales, such as rent, salaries, and insurance.

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The amount remaining from sales revenue after variable costs have been deducted, used to cover fixed costs and to generate profit.

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