Consider the Following Two Scenarios: 1) a Flash- Flood Sweeps

question 12

Multiple Choice

Consider the following two scenarios: 1) A flash- flood sweeps through an area and random lemmings are killed, resulting in a change in lemming phenotype in subsequent generations; 2) A flash- flood sweeps through an area and some lemmings are able to survive because they are able to hold their breath longer than other lemmings, resulting in a change in lemming phenotype in subsequent generations. What are the primary differences between the two scenarios?

• A) Scenario 1 represents natural selection, while Scenario 2 represents genetic drift.
• B) Both scenarios represent genetic drift.
• C) Both scenarios represent natural selection.
• D) Scenario 1 represents genetic drift, while Scenario 2 represents natural selection.

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Definitions:

Front Side Bus

A data bus that carries information between the CPU and a memory controller hub, known as the northbridge, in a computer's chipset.

Control Unit

Unit of the CPU that manages the switches inside the CPU.

Processing Power

refers to the capability of a computer or device to process data and execute instructions in a given amount of time.

Clock Speed

The steady and constant pace at which a computer goes through machine cycles, measured in hertz (Hz).