Flatworms are described as 'acoelomate' because:
Show answer and explanation
Correct answer: Parenchyma tissue fills the body wall space
Platyhelminthes (flatworms) are acoelomate — they lack a true body cavity. The region between the outer epidermis and inner gut lining is packed with solid mesodermal parenchyma tissue, leaving no open fluid-filled space.
Practice all 20 Platyhelminthes, Nemathelminthes and Annelida questions
Keep practicing
More Platyhelminthes, Nemathelminthes and Annelida questions
- Which of the following describes the nervous system structure in most Annelids?
- Nematodes are known for 'eutely.' What does this biological phenomenon imply?
- The 'Chloragogen cells' found in the earthworm are functionally analogous to which vertebrate organ?
- What is the function of the 'Typhlosole' in the intestine of an earthworm?
- In Phylum Nematoda, which of the following is ABSENT in their anatomical structure?
- Which parasite belongs to Platyhelminthes and requires a snail as an intermediate host in its life cycle?