Why Did the Lactose Tolerance Mutation in the East African

question 1

Multiple Choice

Why did the lactose tolerance mutation in the East African herders spread so rapidly within the population?

• A)Milk was a good source of protein during the winter.
• B)It was a selective advantage for survival during droughts.
• C)Lactose was a better source of energy than glucose.
• D)Milk provided calcium for strong bones.

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Definitions:

Absorption Costing

An accounting method that includes all manufacturing costs (both fixed and variable) in the cost of a product.

Operating Income

Earnings from a company's core business operations, excluding expenses and revenues from investments and other non-operational activities.

Variable Costing

An accounting method that only allocates variable production costs to products, excluding fixed costs.

Absorption Costing

A costing method that includes all manufacturing costs - direct materials, direct labor, and both variable and fixed overhead - in the cost of a product.