Multiple choice

What can be compared to determine if a population is increasing or decreasing in size?

  1. mammals vs. reptiles

  2. water vs. food

  3. births vs. deaths

  4. days vs. nights
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The growth rate of a population is primarily determined by the balance between the birth rate (individuals added) and the death rate (individuals lost), along with migration. Comparing births to deaths directly shows if a population is growing or shrinking.

Keep practicing — related questions