Question

Assertion :Metameric animals are triploblastic. Reason: Triploblastic animals are bilaterally symmetrical

• A. Both are correct
• B. Both are incorrect
• C. 1 is correct, 2 is incorrect
• D. 1 is incorrect, 2 is correct

Answer 1

The correct option is C 1 is correct, 2 is incorrect

Metamerism corresponds to the linear arrangement of recurring organs or organ system, occurring along the segment or length of the organism's body. Metameric animals are essentially triploblastic, i.e., they possess 3 major tissue layers that are, a middle layer (the mesoderm), between the endoderm and the ectoderm.

However, triploblastic animals do not essentially show bilateral symmetry. They can show radial symmetry, as seen in starfish, an Echinoderm.

So, the correct option is '1 is correct, 2 is incorrect'.