A circulatory system that keeps blood confined within vessels after leaving the heart is a(an)
A) closed circulatory system.
B) gastrovascular cavity.
C) open circulatory system.
D) incomplete circulatory system.
E) complete circulatory system.
Correct Answer:
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Q29: Which of the following does not have
Q33: Sponges belong to the phylum
A)PoriferA.
B)Cnidaria.
C)Platyhelminthes.
D)Nematoda.
E)Annelida.
Q34: A mollusk with multiple arms for locomotion
Q36: Which trait,if found in a newly discovered
Q37: Snails and squids belong to the phylum
A)CnidariA.
B)Porifera.
C)Platyhelminthes.
D)Mollusca.
E)Annelida.
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
Q43: Which is a characteristic of hagfishes?
A)They have
Q50: You are helping to prepare images for
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