Question

Cephalochordates are unique in showing affinity with chordates in the following features A. Elongated, slender body
B. Well developed coelom
C. Mouth surrounded by oral hood
D. Bilateral symmetry
E. Pharynx having endostyle and gill slits Choose the correct answer from the options given below:

• A. B, D, E only
• B. A, C, E only
• C. A, B, D only
• D. C, D, E only

Hint:

Cephalochordates possess oral hood and pharyngeal gill slits.

Answer 1

The Correct Option is B

Concept:
Cephalochordates show primitive chordate characteristics.
Step 1:
They possess elongated slender body. Thus A is correct.
Step 2:
Mouth is surrounded by oral hood with cirri. Thus C is correct.
Step 3:
Pharynx contains:
• Gill slits
• Endostyle Thus E is correct.
Step 4:
Correct combination is: \[ A,\quad C,\quad E \] \[ \boxed{\text{Correct Option = (2)}} \]