For the following questions answer them individually
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?
The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as
Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement.
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by