Phylum Cnidaria

Review Questions

Cnidocytes are found in _____.

  1. phylum Porifera
  2. phylum Nemertea
  3. phylum Nematoda
  4. phylum Cnidaria

Hint:

D

Cubozoans are ________.

  1. polyps
  2. medusoids
  3. polymorphs
  4. sponges

Hint:

C

While collecting specimens, a marine biologist finds a sessile Cnidarian. The medusas that bud from it swim by contracting a ring of muscle in their bells. To which class does this specimen belong?

  1. Class Hydrozoa
  2. Class Cubozoa
  3. Class Scyphozoa
  4. Class Anthozoa

Hint:

C