Who developed the concept of phagocytosis in immunity?

One of the sciences for which training in biology is essential,namely the science of treating diseases with drugs or curative substances,is called

Who was the first physician in ancient India to develop the concepts of digestion,metabolism,and immunity?

The enzyme $DNA$ polymerase was discovered by

The earliest site where human civilization and crop cultivation started was presumably

$A$ prediction made by a scientist based on his observations is known as