Which structure, located at the top of a sponge, allows water to exit the sponge?

Which of the following organisms moves with the help of a nerve net?

Which of the following phyla is considered asymmetrical?

Which group contains the man-o-war?

Which of the following best represents the defense mechanism for all creatures in Phylum Cnidaria?

Which type of organism has no true tissues?

Which organism does not exhibit a gastrovascular cavity?

Corals, like the brain coral, belong to which group?

The sea gooseberry is a species of comb jelly that lives in the Pacific Ocean. To which phylum does it belong?

Which of the following organisms is not classified as sessile?

Which of the following represents a difference between the tentacles of cnidarians and ctenophores?

Which of the follwoing best describe the term "sessile"?

Which of the following is the name for the adult form of jellyfish?

Which of the following represents the name of the organelle within cnidocytes that allows it to sting prey?

Which phyla of animals is capable of asexual reproduction via regeneration?