Biology 2nd Paper MCQ-Barishal Board-2017

1. Blood Group $\mathrm{A}^{-\mathrm{ve}} \mathrm{B}^{\text {+ve }}$

What will be the probable blood group of the above-mentioned couple?

2. Which one is true for cardiac muscle?

3. At the time of eating meals quickly, we sometimes stop eating food and keep coughing continuously.

The above process occurs when-

i. Food enters in trachea

i. Epiglottis is displaced

ii. The mucous membrane of the trachea is stimulated

Which one is correct?

4. Reflex action is -

i. Accommodation of eye

ii. Yawning

iii. Salivation

Which one is correct?

5. Which one is appropriate for the diaphragm?