Multiple choice

Which organ of the earthworm involve(s) in the process of breathing?

  1. Lungs

  2. Nostrils

  3. Skin

  4. Gills

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

Earthworm is not a highly complex organism to have gills, lung or nostrils for respiration. Its cells are in contact with the absorphere directly so breathing in earthworm takes place through skin.