Biology 1st Paper CQ-Dinajpur Board-2022

What is plasmid?

What is meant by dormancy of pathogen?

Describe the prevention of disease indicated by 'P' mentioned in the stem.

The parasite responsible for the disease indicated by 'Q' mentioned in the stem needs two hosts in its life cycle-Analyze.

What is active absorption?

What is meant by lenticular transpiration?

Write the characteristics of the plant related with P mentioned in the stem.

Different amount of energy is produced in the physiological process 'R' mentioned in the stem.

What is chromosome?

What is meant by educational division?

Write the characteristics of the stage 'P' mentioned in the stem.

Analyze the importance of the cell division related with the figure Q mentioned in the stem.

What is fermentation?

What is meant by limiting factor?

Describe a moden theory in case of opening and closing of ' $S$ ' mentioned in the stem.

Compare between $S$ with the water releasing organ indicate by ' $\mathrm{R}$ ' as shown in the stem.

What is sorus?

What is meant by heterospory?

Describe the causes of special root formation of the plant indicted y 'M' mentioned in the stem.

Compare between 'M' and 'N' mentioned in the stem.