The acid that is secreted in the stomach is


B. H2SO4

C. H2CO3


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  1. Vitamin D deficiency leads to
  2. The white blood corpuscles the body because they are popularly called soldiers of
  3. Oparin is known for his hypothesis on
  4. The most accepted theory of the origin of earth is the fiery origin which was propounded by
  5. Necrosis is a symptom which is recognised by
  6. AIDS is caused by the organisms which are
  7. Which one of the following is viral disease?
  8. Clotting of blood is
  9. Blood clot Inside blood vessels is prevented by
  10. Nekton are those organisms
  11. The universal recipient belongs to blood group
  12. Vitamin D is manufactured in a healthy human being by the action of _______ on the skin and absorbed…
  13. Viruses have
  14. Which among the following animals has the largest Intestine?
  15. Malaria is transmitted from one person to another by
  16. In phototropism, auxins
  17. Organisms that live in the deep sea are mainly
  18. Lecuminous plants are recommended for rotation of crops because they
  19. Insect pollination is known as
  20. Late Blight' is a disease that affects the _______ crop.
  21. The insects do not have blood pigments because
  22. Biological control is to check growth of
  23. Tetrodotoxin is a potent poison that
  24. An inherited characteristic which does not appear in one generation but can appear in the next is called
  25. Oxygen transport is a function of
  26. Which of the following terms is used in Botany?
  27. The closing and opening of the leaves of Mimosa pudica (Touch me not) plant is due to _______ movement.
  28. The spores of Puccinia formed on the leaves of wheat are called
  29. Insects that make a clicking sound are
  30. Modern classification of the living world recognise ___________ kingdoms.