Multiple Choice
A planarian feeds by
A) attaching with a sucker and extracting blood.
B) scraping and sucking food particles via a midventral proboscis.
C) engulfing food particles through an anterior mouth and excreting waste via an anus.
D) soaking all nutrients from the environment through its thin epidermal surface.
E) sucking nutrients from the environment through its flame cell system.
Correct Answer:
Verified
Correct Answer:
Verified
Q3: Turbellarians have light-sensitive organs called _ or
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
Q9: Since flatworms and ribbon worms lack a
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