Flatworms have
A) Many representatives that are parasitic
B) No structure capable of gathering food actively
C) A complete digestive tract with mouth and anus
D) Only free-living representatives
Correct Answer:
Verified
Q1: What is the advantage of bilateral symmetry
Q2: Sponges feed by means of
A) Currents formed
Q3: All sponges have
A) Spicules
B) Bilateral symmetry
C) Nematocysts
D)
Q4: All sponges
A) Reproduce exclusively asexually
B) Have sexual
Q5: All Cnidaria
A) Have a swimming life stage
Q7: Nemerteans differ from nematodes in that they
A)
Q8: Annelids differ from nematodes in
A) Having a
Q9: Members of the Polychaeta
A) Have parapodia
B) Lack
Q10: The Pogonophora
A) Are worm-like in shape
B) Lack
Q11: A close relative of the Pogonophora is
A)
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