Refer to the Figure Shown Here

question 18

Multiple Choice

Refer to the figure shown here. Which of the following would not have been a selective agent or pressure that could lead to the reduction in hindlimbs through time?

• A) The animal's body size was too heavy to support the weight on land and hindlimbs were no longer useful.
• B) More emphasis was placed on flexing the backbone than on paddling with hindlimbs for swimming.
• C) Appendages cause resistance, or drag, when moving through water.
• D) Before moving into the ocean, smaller legs were advantageous to escaping predators on land.
• E) With the increased size of the tail and its use in swimming, the hindlimbs were not as necessary.

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Definitions:

Left Lobes

Refers to the sections or divisions of an organ on the left side of the body, such as the left lobes of the liver or lungs.

Postural Drainage

A technique used in respiratory therapy to drain mucus from the lungs by positioning the body in specific ways, utilizing gravity.

Congestive Heart Failure (CHF)

A chronic condition where the heart's ability to pump effectively is compromised, leading to the accumulation of fluid in body tissues.

Pulmonary Edema

A condition characterized by excessive fluid in the lungs, which can lead to difficulty breathing and inadequate oxygenation of the blood.