Biology 2nd Paper MCQ-Sylhet Board-2022

1. Which gas absent in the swim bladder of Rui fish?

2. Doctor examined the blood of Mr. Shafiq for the problem of the shortage of blood and snid you can take blood from any healthy person. -

Which is the blood group of Mr. Shafiq?

3. Which does not secrete from the $R$ marked part of the stem?

4. The respiratory centre of the brain located in-

i. pons

ii. cerebellum

iii. medulla oblongata

Which one is correct?

5. What kind of Jocomotion of hydra is called Joka locomotion?