Which invertebrate animal group is characterized by having a closed circulatory system?
A) Arthropoda
B) Echinodermata
C) Nematoda
D) Annelida
E) Platyhelminthes
Correct Answer:
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Q26: A cnidarian that builds a calcium carbonate
Q27: A(n) provides support and protection to arthropods.
A)
Q28: are characterized by having a pseudocoelom.
A) Cnidarians
B)
Q29: Giant squids are classified as
A) arthropods.
B) mollusks.
C)
Q30: Flatworms lack
A) a reproductive system.
B) a respiratory
Q32: What causes schistosomiasis, a devastating disease that
Q33: Which of these groups is characterized by
Q34: The simplest multicellular animals that have only
Q35: The phylum Nematoda includes which of the
Q36: An animal such as a grasshopper can
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