Why Have Growth Rates Increased the Most in Developing Countries

question 20

Multiple Choice

Why have growth rates increased the most in developing countries in the past 50 years?

• A) Death rates have fallen slower than birth rates.
• B) Death rates have gone up faster than birth rates.
• C) Death rates have fallen faster than birth rates.
• D) Death rates have gone up slower than birth rates.

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Definitions:

Sensory Adaptation

The process by which sensory receptors become less sensitive to constant stimuli over time, allowing organisms to focus on changes in their environment.

Primary Receptors

Sensory structures that respond to environmental stimuli by initiating a sensory signal.

Free Nerve Endings

Sensory receptors located near the surface of the skin that can detect pain, temperature, and touch.

Hair Cells

Sensory cells located in the inner ear that convert sound vibrations into electrical signals that can be interpreted by the brain.