What do mollusks contain?
harmful substances Organic compounds bacon cayenne acetic acid dogs Chlorophyll Calcium carbonate
A B C D E F G H
Coral reefs and shells are made of calcium carbonate.
mollusks contain calcium carbonate
What do mollusks contain? (A) harmful substances (B) Organic compounds (C) bacon (D) cayenne (E) acetic acid (F) dogs (G) Chlorophyll (H) Calcium carbonate