Discuss the role of following with reference to immunity : Interferons.

Discuss the role of following with reference to immunity : Phagocytes.

Discuss the role of following with reference to immunity :Antibodies.

Discuss the role of following with reference to immunity : Helper-T cells.

What is role of following in providing immunity? Interferons.

Interferons are

Explain the role of following hormones ,with reference to menstrual cycle: Estrogen,

Explain the role of following hormone ,with reference to menstrual cycle: LH,

Plant breeding deals with the development of better suited, high yielding and disease-resistant plant species. Discuss the role of following in achieving the aim of plant breeding.

Explain the role of following hormones ,with reference to menstrual cycle: FSH,

Discuss the role of bile in digestion of food.