Multiple choice

What's SIMILAR about the carbon and nitrogen cycles?

  1. Animals gain both N and C through cellular respiration.

  2. Plants get both nitrogen and carbon from the air.

  3. Animals use consumption to get both N and C.

  4. Plants use photosynthesis to get both N and C.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both carbon and nitrogen are essential nutrients that animals obtain by consuming other organisms. Plants do not get both from the air, and animals do not get them through respiration.