Question

1. what class of cnidarians is mostly corals and sea anemones?

○ calcarea
○ scyphozoa
○ anthozoa
○ hydrozoa

Explanation:

To determine the class of Cnidarians that includes mostly corals and sea anemones, we analyze each option:

• Calcarea: Belongs to Porifera (sponges), not Cnidaria. Eliminate.
• Scyphozoa: Includes true jellyfish, not corals/sea anemones. Eliminate.
• Anthozoa: This class of Cnidaria consists of corals, sea anemones, and related organisms.
• Hydrozoa: Includes hydroids, not primarily corals/sea anemones. Eliminate.

Answer:

C. Anthozoa