The teacher warning could be the practice you are about to do can harm you in some way if that careful. Please let me know if I'm understanding this.
Answer:
Krill
Explanation:
Based on the information provided within the question it can be said that the the Crabeater Seal's main source of food are Krill. These are a type of shrimp that can be found in cold water such as Antarctica. Despite the misleading name Crabeater Seal' do not eat crabs seeing as since the are no crabs in Antartica.
Large indentions on the moon's surface, are known as craters.
Hope this helps!
Body cells since they spilt apart and create two identical daughter cells