Figure 40.2 -In the Above Illustration of Fluid Regulation in a Planarian,the

Multiple Choice

Figure 40.2

-In the above illustration of fluid regulation in a planarian,the letter "A" represents which of the following?  

A) Nucleus of the flame cell
B) Small capillaries that allow water to freely diffuse into the planarian
C) Sexual reproductive organ
D) Cilia to draw fluid into the planarian
E) Funnel to collect fluid