Biology MCQs

31. Flightless birds belong to which of the following group?
[A] Ratites
[B] Neornithes
[C] Archaeornithes
[D] None of these

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32. Which layer has the highest concentration of keratin and lamellar granules?
[A] Stratum Basale
[B] Stratum Spinosum
[C] Stratum Corneum
[D] Stratum Granulosum

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33. Which structure is part of the tectum?
[A] superior colliculus
[B] periaqueductal grey
[C] substantia nigra
[D] red nucleus

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34. Which of the following is an example of a basic nervous system function?
[A] Remembering a painful experience
[B] Sweating during a yoga class
[C] Feeling afraid of the dark
[D] Learning English as a second language

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35. Myopia and hypermetropia can be corrected by __
[A] Concave and a plano-convex lens
[B] Concave and convex lens
[C] Convex and concave lens
[D] Plano-concave lens for both defects

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36. The human alimentary canal runs from the mouth to the anus and is approximately how many meters long?
[A] 4 m
[B] 15 m
[C] 9 m
[D] 1 m

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37. The bioethanol is subjected to rectification to remove?
[A] Sugar
[B] Enzymes
[C] Yeast
[D] Impurities

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38. Lungs are the primary organs of ____:
[A] Digestion
[B] Respiration
[C] Constipation
[D] Perspiration

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39. Seed dormancy is regulated by ____:
[A] Abscisic acid
[B] Indole acetic acid
[C] Ethylene
[D] Gibberellic acid

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40. Which of the following cell organelle contains DNA apart from nucleus?
[A] Golgi Apparatus
[B] Mitochondria
[C] Cytoplasm
[D] Ribosome

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