Biology MCQs

31. In mammals, few vertebrae join to form?
[A] Humerus
[B] Femur
[C] Synsacrum
[D] Atlas

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32. This is not a classification of mammals:
[A] Eutheria
[B] Anapsida
[C] Metatheria
[D] Prototheria

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33. How many types of joints are present in our body?
[A] 2
[B] 3
[C] 5
[D] 6

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34. The branch of biology that studies the immune system in all organisms.
[A] Botany
[B] Microbiology
[C] Immunology
[D] Biotechnology

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35. Which of the following is best maintains intestinal health?
[A] Starches
[B] Vitamins
[C] Fiber
[D] Fat

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36. Syphilis is a bacterial infection usually spread by __
[A] Sexual contact
[B] Wound infection
[C] Air-borne droplets
[D] None of these

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37. A nitrogen-fixing bacterium that forms loose associations with the roots of crop plants is __.
[A] Azotobacter
[B] Bacillus polymyxa
[C] Clostridium
[D] Azospirillum

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38. What is the aerobic digestion of sewage used to produce?
[A] Biomass
[B] Biofuels
[C] Synthetic fuels
[D] Metal articles

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39. Yeast and mushrooms are the examples of organisms of which kingdom?
[A] Fungi
[B] Protista
[C] Monera
[D] Plantae

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40. Substances which are used to bring down the temperature in high fever condition are called ____:
[A] Antiseptics
[B] Antibiotics
[C] Pyretics
[D] Antipyretics

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