What Role Has Methane Played in the Search for Life

question 11

Multiple Choice

What role has methane played in the search for life on Mars?

• A) Methane destroys simple life-forms, so the existence of methane precludes the existence of simple life-forms on Mars.
• B) Methane is produced by life-forms, so the search for methane being released from under the Martian surface-so far unsuccessful-continues.
• C) Sunlight breaks down methane within a few centuries. The presence of methane on Mars suggests that it is being renewed continually, perhaps by living organisms.
• D) So far methane has played no role in the search for life on Mars.

Identify treatments for common bone and joint disorders, including osteoporosis.

Recognize different types of cartilage and their specific locations in the body.

Distinguish between fast-twitch and slow-twitch muscle fibers and their roles in different physical activities.

Describe the effects of muscle non-use and weak contractions on muscle size.

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Definitions:

Retail Clerk

A retail clerk is an employee working within a retail setting, responsible for assisting customers, processing transactions, and organizing merchandise.

Part-Time

Part-Time describes employment with fewer hours per week than a full-time job, often offering limited benefits and flexibility.

Earnings

The amount of money that a company makes from its activities, often reported as profit on a financial statement.

Restaurant

A business establishment where meals or refreshments may be purchased and consumed by patrons.