Which of the Following Must Exist in a Population Before

question 55

Multiple Choice

Which of the following must exist in a population before natural selection can act upon that population?

• A) genetic variation among individuals
• B) variation among individuals caused by environmental factors
• C) sexual reproduction
• D) Three of the responses are correct.
• E) Two of the responses are correct.

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Definitions:

Antiseptic

A substance that reduces the risk of infection by inhibiting the growth of microorganisms, often used on living tissue or skin.

Minor Surgery

Surgical procedures that are less invasive and typically carry a lower risk, often performed in an outpatient setting.

Betadine

A brand name for a type of antiseptic used to prevent infection in wounds, containing the active ingredient povidone-iodine.

Preoperative Instruction

Guidelines given to patients before surgery, which may include dietary restrictions, medication rules, and what to expect during and after the procedure.