Several Important Adaptations Evolved in the Common Ancestor of Land

question 96

Multiple Choice

Several important adaptations evolved in the common ancestor of land plants that allowed for successful emergence on land.Which of the following is one of those changes?

• A) Evolution of a waxy cuticle
• B) Evolution of a carbohydrate energy-storage molecule
• C) Evolution of a diploid form that produces haploid gametes
• D) Evolution of a mechanism for structural support
• E) Evolution of channels for transporting water

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Definitions:

Direct Labor-Hours

The total hours worked by employees directly involved in the manufacturing process, used as a basis for allocating overhead costs.

Machine-Hours

A measure of the amount of time machines are operated during the production process, used for allocating costs or measuring productivity.

Markup

The additional sum included in the purchase price of products to account for overhead expenses and profit.

Variable Manufacturing Overhead

Expenses that vary with production volume, such as utilities and materials.