MCQ
In cockroach head can move in all directions due to
- Aabsence of neck.
- Bfusion of all $6$ segments of head.
- ✓flexible neck.
- Dhead is small and light weight.
✓
Answer
Correct option: C.
flexible neck.
c
The head is triangular in shape which lies anteriorly at right angles to the longitudinal body axis. The head is formed by the fusion of six segments. The flexible neck facilitates movement in all directions.
The head is triangular in shape which lies anteriorly at right angles to the longitudinal body axis. The head is formed by the fusion of six segments. The flexible neck facilitates movement in all directions.
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(ii) A healthy adult man has, on an average, 5-5.5 millions of RBCs/mm3 of blood.
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