Correct Answer:
Option C - The body of animals of the phylum Platyhelminthes shows tissue-organ level of organization. In platyhelminthes, tissues are organized into organs and these organs are organized into organ systems. They are tripoblastic, acoelomate and bilaterally symmetrical, may be free-living or parasites
C. The body of animals of the phylum Platyhelminthes shows tissue-organ level of organization. In platyhelminthes, tissues are organized into organs and these organs are organized into organ systems. They are tripoblastic, acoelomate and bilaterally symmetrical, may be free-living or parasites