Read the Following Scenario, and Answer the Questions Below

question 4

Multiple Choice

Read the following scenario, and answer the questions below.

THE EXPERIMENT:
Researchers wanted to determine whether pesticide Z is effective at killing grasshoppers that typically invade cornfields. Two 10- acre cornfields located 1 mile apart were chosen. The cornfield to the west was sprayed only with water. The cornfield on the east received the same amount of water with a 10% solution of pesticide Z. The number of grasshoppers in the fields was recorded every week for 10 weeks.

RESULTS:
The number of grasshoppers in the west field treated only with water doubled after 10 weeks.
The number of grasshoppers in the east field treated with pesticide Z declined by 50% after 10 weeks.

-If both fields had the same amount of grasshoppers at the start of the experiment,how many times more grasshoppers were in the west field than the east field after 10 weeks?

• A)Four times more
• B)Twice as many
• C)Half as many
• D)Cannot be determined

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Definitions:

Limbic System

A complex system of nerves and networks in the brain, involved in various emotional states and biological drives.

Cerebellum

A part of the brain located at the back of the skull in vertebrates, responsible for coordinating muscle movements and maintaining posture and balance.

Repolarization

The process of restoring the negative charge inside a nerve cell after depolarization, essential for the transmission of nerve impulses.

Sodium Gates

Protein channels in cell membranes that open or close to allow sodium ions to enter or exit, playing key roles in generating electrical signals.