Biological control is to check growth of

A. plants

B. animals

C. weeds

D. one pest by another

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The olfactory area is concerned with
  2. One of the following is often called the master gland. Which one is it?
  3. Vitamin D is known as anti-rachitic vitamin because it cures the deficiency disease called
  4. Which among the following is a Cast growing tree?
  5. Eye is an organ that can be called as
  6. Rate of mutation can be increased in plants by
  7. Which of the following contains the highest protein content per gram?
  8. The theory that all animals and plants are made up of cells and they could arise only from pre-existing…
  9. The bile contains the pigments
  10. Maintenance of pregency is under the control of
  11. Fledgling is a term often used to denote the young one of a
  12. Nephrons are found inside
  13. Savannah is
  14. Baldness is seen only in the males because
  15. Which one of the following acts as a communication system?
  16. The first sign of life made its appearance on the earth about
  17. The plant cells are surrounded rigidly by
  18. Food substances are substances by
  19. The following disease is prevented by triple-antigen immunization
  20. The two German scientists who proposed the 'cell theory' were
  21. Chemical substances that called have effect on growth of plants are called
  22. Insulin is concerned with the metabolism of
  23. The germ theory of diseases was put forward by
  24. What is an antigen?
  25. Legumes are highly nutritious because they are rich in
  26. Haemophilia is a hereditary disease carried by
  27. Which one of the following is both an exocrine and an endocrine gland?
  28. Loss of blood is
  29. Which of the following diseases are not bacterial?
  30. The 'germ theory of disease' was propounded by