Biology MCQs

31. Which of the following is the largest group of mammals?
[A] Rodentia
[B] Chiroptera
[C] Carnivora
[D] Insectivora

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32. Civet oil is extracted from which of the following species?
[A] Agamospecies
[B] Nominalistic
[C] Viverridae
[D] None of these

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33. The reflex actions that involve the brain are called which of the following?
[A] Stimulus
[B] Cerebral reflexes
[C] Spinal reflexes
[D] Reflex arc

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34. What is the name of the smallest muscle?
[A] Gutters Maximus
[B] Antagonists
[C] Stapedius
[D] None of the above

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35. Granulocytes and agranulocytes are a classification of which of the following?
[A] White blood cells
[B] Red blood cells
[C] Platelets
[D] Homeostasis

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36. What does the liver do to help digestion?
[A] Makes important enzymes
[B] Neutralizes stomach acid
[C] Produces bile
[D] Regulates insulin

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37. What is Campylobacter abortion in animals?
[A] Abortions after 4-8 months of pregnancy
[B] incubation period is generally 1-2 weeks
[C] abortion in late pregnancy
[D] All of the above

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38. What is the nitrogen-fixing symbiotic organism present in Azolla?
[A] nostoke
[B] anabaena
[C] aulosira
[D] azospirillum

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39. Which metal microparticles are used in gene guns?
[A] Aurum
[B] Nitrogen
[C] Magnesium
[D] Cuprum

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40. Which one of the following features is absent in a virus?
[A] Presence of cell wall
[B] Reproduce within host cell
[C] Fully parasitic in nature
[D] Presence of either DNA or RNA

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