Multiple choice

Describe a graph of what happens over time in a population where a disease is spreading.

  1. Number of people increases and then goes back down

  2. Number of people starts at maximum and goes down to 0

  3. Number of people starts at 0 and continues to increase

  4. Number of people starts at maximum, goes down and back up
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a disease spreads through a population, the number of infected individuals typically rises as the disease transmits, peaks, and then declines as people recover or become immune.

Keep practicing — related questions