Within phylum Cnidaria, the class that includes the most species is Blank______.Multiple choice question.ScyphozoaStaurozoaHydrozoaCubozoaAnthozoa

Break Down the Problem

1. Identify the phylum and class mentioned in the question.
2. Analyze which class within phylum Cnidaria has the most species.

Relevant Concepts

• Phylum Cnidaria is divided into various classes, each characterized by specific features and number of species.
• The classes listed are:
  • Scyphozoa (jellyfish)
  • Staurozoa (stalked jellyfish)
  • Hydrozoa (hydroids)
  • Cubozoa (box jellyfish)
  • Anthozoa (corals and sea anemones)

Analysis and Detail

1. Scyphozoa: Includes many species of true jellyfish but fewer compared to other classes.
2. Staurozoa: This class has a limited number of species (about 50).
3. Hydrozoa: This class contains a variety of species, including both marine and freshwater organisms, totaling several hundred.
4. Cubozoa: Known as box jellyfish, this class has fewer species.
5. Anthozoa: Includes corals and sea anemones, containing thousands of species.

Verify and Summarize

When comparing the classes, Hydrozoa and Anthozoa stand out due to their diverse species count. However, Anthozoa has been found to have the most species overall within the phylum.

Final Answer

The class that includes the most species within phylum Cnidaria is Anthozoa.