What is the function of a fish's operculum?
A) To detects biofields in the immediate vicinity
B) To detects movements in the surrounding water
C) To protects the gills
D) To provides buoyancy
Correct Answer:
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Q37: Worms all appear to be closely related
Q38: Which of the following phyla is the
Q39: Which worm phylum lacks body segmentation?
A)Flatworms
B)Annelids
C)Roundworms
D)Both flatworms
Q40: What are the key characteristics of arthropods?
A)Fused
Q41: Which group of fishes evolved first (in
Q43: Which group of fishes evolved most recently
Q44: Which chordate trait evolved first?
A)Calcium-hardened skeleton
B)Amniotic egg
C)Four
Q45: What is the main difference between amphibians
Q46: Which of the following group is most
Q47: Although exceptions do exist, which is a
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