Multiple choice

Parenchymal circulation is present in which of the following?

  1. Amoeba

  2. Fasciola

  3. Ascaris

  4. Sponges

  5. Amphioxus

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coelom is absent in fasciola. Circulation occurs in space between internal walls. Its body contains a special tissue called parenchyma, which encloses a network of fluid filled spaces.