Answer :
Answer:
A compound-complex sentence
Explanation:
Compound-complex sentences are those that have a minimum of two independent clauses, plus one or more dependent clauses. These sentences always contain punctuation marks due to their longer-than-usual length and are commonly used to explain long ideas or to connect them with the help of conjunctions.
In this case, the sentence: After a parrotfish eats algae-covered coral, the coral travels through the fish's digestive system, and then it is deposited in the reef as white coral sand is an example of a compound-complex sentence as it contains more than one independent clause and one dependent clause.