Observe the illustration showing, the maintenance of calcium level in blood and answer the following questions.
Name the hormones A and D

Observe the diagram and answer the following question. Name the area labelled here.

Analyse the illustrations related to the process of blood clueing and answer the following questions. Identify A and B.

Observe the dlagram and answer the following questions. Name the functional unit of the kidney.

Studey the picture showing events of menstrual cycle and answer the following questions. Name the major hormones responsible for the events shown in stage 1 and 2.

The diagram shows the interaction between the hypothalamus, pituitary and thyroid glands. Arrow indicates the probable pathway of direct influence. Answer the following questions. a) Name the hormones A and B. b) State the effect of hormone A on the thyroid. c) State the effect of hormone B on the hypothalamus. d) Describe the control on pituitary by the hypothalamus in this situation.