Although potato tuber is an understand part, it is considered as stem. Give two reasons.

It is not possible to study the inheritance of traits in humans in the same way as in pea. Give two reasons. Name the alternative method employed for the same.

If you get a 4 cm piece of woody flowering plant, how will you decide anatomically whether it is root or stem? Give two reasons.

What is the need for modulation of a signal ? Give two reasons.

Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or a dicot stem? Give reasons.

Why is coke considered a better fuel than coal? Give four reasons.