Alpha cells of Pancreas secrete:

1. Glycogen
2. Glucose
3. Glucagon
4. Insulin

Haploid number of chromosomes are found in:

1. Nephrons
2. Neurons
3. Skin cells
4. Sperms

The statistical study of human population is called:

1. Mortality
2. Demography
3. Natality
4. Equality

The pale yellow colour of normal human urine is due to the pigment:

1. Melanin
2. Anthocyanin
3. Urochrome
4. Haemoglobin