Which of the following phyla is the most diverse and numerous of all animal phyla?
A) The mollusks
B) The cnidarians
C) The echinoderms
D) The arthropods
Correct Answer:
Verified
Q33: Which type of worm lacks a complete
Q34: Which arthropod subgroup includes animals with six
Q35: All vertebrates have _.
A)hair and a backbone
B)a
Q36: Echinoderms can be best described as _.
A)eukaryotic
Q37: Worms all appear to be closely related
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
Q42: What is the function of a fish's
Q43: Which group of fishes evolved most recently
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