Question

Hemichordates are the connecting link between

• A. Urochordates and cephalochordates
• B. Cephalochordates and vertebrates
• C. Urochordates and vertebrates
• D. Non-chordates and chordates

Answer 1

The correct option is D Non-chordates and chordates

Hemichordates means half chordates. It is a connecting link between non-chordates and chordates as they share some characteristics of both. The chordates have creatine in their energy cycle for the muscle contaction while non-chordates have arginine but the hemichordates have both i.e., creatine as well as arginine.

So, the correct answer is option D.