What is corona radiata?

Differentiate between Zona pellucida and Corona radiata.

Draw a diagram of the structure of a human ovum surrounded by corona radiata. Label the following parts: Ovum Plasma Membrane Zona Pellucida.

Draw a neat diagram of an oocyte and label. Corona radiata.

What is torsion? What is its effect?

What is microwave link? What are its drawbacks?

What is continental drift? What is its significance?