NEET BIOLOGY

Detailed explanation-1: -Platyhelminthes are commonly called flatworms as they have a dorso-ventrally flattened body. They are triploblastic, bilaterally symmetrical and acoelomate animals.

Detailed explanation-2: -Animals belonging to phylum Platyhelminthes to Chordata have a triploblastic organisation. These organisms are acoelomate. Coelom is absent.

Detailed explanation-3: -Flatworms are bilaterally symmetrical, triploblastic and acoelomate animals with organ level of organisation. Members of phylum aschelminthes are triploblastic, bilaterally symmetrical and pseudocoelomates.

Detailed explanation-4: -Platyhelminths (flatworms) have unsegmented, bilaterally symmetrical, soft bodies, with a triploblastic construction (comprising three layers of cells) and lacking a coelom (body cavity), skeleton and anus.

Detailed explanation-5: -Bilateral symmetry is the symmetrical arrangement of an organism or part of an organism along with a central axis so that the organism or part can be divided into two equal halves. Bilateral symmetry is an important anatomical feature of animals belonging to Phylum Platyhelminthes.