An animal such as a grasshopper can conserve water because it has an elaborately branching system of tubes within its body that it uses for gas exchange. These tubes are called
A) gills.
B) flame cells.
C) tracheae.
D) book lungs.
E) kidneys.
Correct Answer:
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Q30: Which invertebrate animal group is characterized by
Q31: Ecdysozoans
A) have a body cavity that forms
Q32: A cnidarian that builds a calcium carbonate
Q33: Which cnidarian is the basis of many
Q34: A(n)_ provides support and protection to arthropods.
A)
Q36: Worms with a well-developed circulatory system (including
Q37: The phylum Nematoda includes which of the
Q38: _are characterized by having a pseudocoelom.
A) Chordates
B)
Q39: Flatworms lack
A) a digestive cavity.
B) a respiratory
Q40: Which of these groups is characterized by
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