Short Answer
People become infected with Schisitosoma when ___________ penetrate the skin.
Correct Answer:
Verified
Correct Answer:
Verified
Q5: The free-swimming,ciliated stage that hatches from a
Q9: Since flatworms and ribbon worms lack a
Q15: Radial symmetry and cephalization evolved together in
Q16: Free-living flatworms have<br>A)ocelli.<br>B)tactile cells.<br>C)chemoreceptors.<br>D)all of these
Q18: Mesodermal cells,known as _ cells,fill the space
Q19: In flame cells<br>A)flagella drive fluid through tubules.<br>B)digestion
Q21: An organism with three distinct germ layers
Q22: Several pseudocoelomate groups have a constant number
Q23: Rotifers<br>A)are primarily marine.<br>B)are dioecious.<br>C)lack an excretory system.<br>D)lack
Q24: The flatworms are more derived (or advanced)than