Biology 2nd Paper CQ-Dhaka Board-2021
1. During teaching on Ruhi fish the teacher said that this fish has such type of air filled special organ which takes a role to maintain balance and respiration in water. It also that the blood circulatory process of this animal is different than yours.
2. Hanif sir displayed and explained the classification to the students of some preserved specimens such as - Flat-worm, Round worm, Prawn and Hilsa fish in the Laboratory.
3. Although Rahim is normal hearing and speech but his father and mother are deaf and mute. After genetic analysis, the results shown that his father's and mother's genotypes are and .
5. Lima saw the picture of Giraffe and Dinosaur at the gate of the zoo, then she entered into the zoo. She observed a long necked living Giraffe, but she did not see a dinosaur.