The simplest multicellular animals that have only a few different cell types are
A) jellyfish.
B) anemones.
C) sea squirts.
D) flatworms.
E) sponges.
Correct Answer:
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Q29: Giant squids are classified as
A) arthropods.
B) mollusks.
C)
Q30: Flatworms lack
A) a reproductive system.
B) a respiratory
Q31: Which invertebrate animal group is characterized by
Q32: What causes schistosomiasis, a devastating disease that
Q33: Which of these groups is characterized by
Q35: The phylum Nematoda includes which of the
Q36: An animal such as a grasshopper can
Q37: Ecdysozoans
A) include mollusks, annelids, and flatworms.
B) have
Q38: Hydra, anemones, and jellyfish are in the
Q39: Which of these groups is characterized by
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