Biology 2nd Paper CQ-Dhaka Board-2019

1. There is a special type of cell present in diploblastic animal. Inside this cell, there is a sac like organelle which is coiled and threaded. Inside that animal there is a different types of organism which is green and closely remain one each other.

2. Mr. Kabir when passing road he can identify signal light. But his wife Mita and her friend Luna cannot. After that Mr. Kabir arranged marriage of his son with the daughter of Luna.

3. There is a special type of food which is digested by different types of enzymes and convert into glucose. Two opposite hormone secreted from pancreas control this glucose level in the body.

4. Among XII pairs of cranial nerves of human II (second) number of nerve enters into a special organ. Though this organ is made by three layers, the innermost layer consist two types of special cell.

5. There is a special type of marine animal which swims at larval stage but in adult he lost some higher characters. He will remain fixed as like as a plant. Though this animal and Scolicodon are under same phylum but they are not under the same sub-phylum.