Biology 2nd Paper MCQ-Sylhet Board-2023

1. The characteristics of Reptilia is-

i. fore limbs with 4 and hind limbs with 5 clawless toes

ii. body covered with plate or epidermal scales

iii. heart incompletely divided into four chambered

Which one is correct?

2. Name of the process occurred in figure- X is-

i. myogenic control

ii. baroreceptor

iii. cardiac cycle

Which one is correct?

3. What is the name of the projecting muscles of the inner wall of heart?

4. Which of the following enzymes is secreted from stomach?

5. In which part of the vertebral column remains in 7 numbers of vertebrae?