Which of the Following Is the Best Explanation of Why

question 31

Multiple Choice

Which of the following is the best explanation of why it is difficult to discriminate the color of an object at night?

• A) Rods contain a single kind of visual pigment.
• B) Cones come in three types, each sensitive to different wavelengths of light.
• C) The foveae are densely packed with cones.
• D) As many as 100 cones may converge on one ganglion cell.

---

Definitions:

American Economy

The economic system of the United States, characterized by a mix of private and public enterprises and a relatively high level of technological innovation and productivity.

Savings Rate

The Savings Rate is a measure indicating the proportion of income that households save rather than spend on consumption.

Economic Growth

An increase in the production of goods and services in an economy over a period, typically measured as a percentage increase in real gross domestic product (GDP).

Pollution Regulations

Laws and rules established to control or reduce harmful emissions and waste to protect the environment and public health.