Multiple choice

Scientists believe the majority of species living in the ocean are ______.

  1. protists

  2. animals

  3. fungi

  4. plants

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

The vast majority of described marine species belong to the animal kingdom, particularly marine invertebrates such as mollusks, crustaceans, and corals. While marine microbes and protists are extremely abundant in individual numbers, animals represent the majority of classified species.