How many of the animal phyla include single-celled animals?
A) 0
B) 1
C) 2
D) 4
Correct Answer:
Verified
Q3: What is the radula's function in mollusks?
A)It
Q4: The first animals evolved _.
A)6 thousand years
Q5: Being a heterotroph means _.
A)making your own
Q6: Which of the following best describes sponges?
A)They
Q7: What happened during the Cambrian explosion?
A)Many large
Q9: Sponges are mostly found in _.
A)marine ecosystems
B)fresh
Q10: Which of the following best describes cnidarians?
A)They
Q11: Some restaurants serve seafood platters that contain
Q12: Which one of the following is a
Q13: Which of the following best describes mollusks?
A)They
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