How does a detritivore differ from a decomposer ? Explain with an example each.

A sugarcane has been affected by virus. How can a virus free cane be developed from it ? Explain the procedure.

Why is DNA a better genetic material when compared to RNA ?

Explain the events in a normal woman during her menstrual cycle on the following days.

(a) Ovarian event from 13-15 days

(b) Ovarian hormones level from 16 to 23 days
(c) Uterine events from 24 to 29 days

A youth in his twenties met with an accident and succumbed to the injuries.His parents agreed to donate his organs. List any two essential clinical steps to be undertaken before any organ transplant. Why is the transplant rejected sometimes ? What views would you share with your health club members to promote organ donation ?