In Addition to Seeds, Which of the Following Characteristics Are

question 27

Multiple Choice

In addition to seeds, which of the following characteristics are unique to the seed-producing plants?

• A) sporopollenin
• B) lignin present in cell walls
• C) pollen
• D) use of air currents as a dispersal agent
• E) megaphylls

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Quantities of natural resources, such as oil or natural gas, that geological and engineering data demonstrate with reasonable certainty to be recoverable under existing economic and operating conditions.

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A strong, lightweight, corrosion-resistant metal with significant usage in aerospace, medical devices, and consumer products.

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