Short Answer
Since flatworms and ribbon worms lack a coelom or a pseudocoel,they are termed _____________ animals.
Correct Answer:

Verified
Correct Answer:
Verified
Q4: Rotifers are _<br>A)primarily marine.<br>B)dioecious.<br>C)animals with a complete
Q5: The free-swimming,ciliated stage that hatches from a
Q6: Animals with three well-defined germ layers and
Q7: Ribbon worms do not regurgitate undigested wastes
Q8: A planarian feeds by<br>A)attaching with a sucker
Q10: Because some turbellarians fail to add yolk
Q11: The flatworms typically have _ cleavage.<br>A)Radial<br>B)Bilateral<br>C)Rotational<br>D)Discoidal<br>E)Spiral
Q12: "Amictic" eggs would<br>A)be fertile but not develop.<br>B)be
Q13: The monogenetic flukes<br>A)are mostly ectoparasites.<br>B)are usually found
Q14: Which of the following statements is NOT