Which is a characteristic of hagfishes?
A) They have a cranium only.
B) They have a skeleton composed of cartilage only.
C) They have both a cranium and skeleton composed of cartilage.
D) They have vertebrae only.
E) They have both a cranium and vertebraE.
Correct Answer:
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Q38: A circulatory system that keeps blood confined
Q39: Leeches and earthworms belong to the phylum
A)PoriferA.
B)Mollusca.
C)Annelida.
D)Nematoda.
E)Platyhelminthes.
Q40: Spiders and scorpions belong to the phylum
A)CnidariA.
B)Echinodermata.
C)Annelida.
D)Mollusca.
E)Arthropoda.
Q42: Which is a lobe-finned fish?
A)stingray
B)lamprey
C)eel
D)lungfish
E)shark
Q44: The function of vertebrae is to
A) protect
Q46: An animal that maintains its body temperature
Q47: Which is an amphibian?
A)turtle
B)lizard
C)toad
D)octopus
E)coelacanth
Q50: You are helping to prepare images for
Q52: If asked on an exam to give
Q56: Which of the following is a jawless
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