Biology MCQs

31. Which pigment is responsible for skin color?
[A] keratin
[B] melanin
[C] carotene
[D] None of these

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32. The only connective tissue without fibroblasts is __
[A] areolar connective tissue
[B] bone
[C] cartilage
[D] blood

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33. What is the classification of epithelial tissue based on?
[A] function
[B] type of matrix
[C] structural modification
[D] nonvoluntary or voluntary action

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

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35. Serum differs from blood because it lacks__
[A] antibodies
[B] clotting factors
[C] albumins
[D] globulins

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36. What are the symptoms of suffering from kidney disease?
[A] High blood pressure
[B] Respiration problem
[C] Swelling on the face, legs, etc.
[D] All of the above

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37. Which of the following is the correct order of travel of sperm through the female reproductive tract before it reaches the egg?
[A] Vagina > Fallopian tube > Uterus > Cervix
[B] Vagina > Cervix > Uterus > Oviduct
[C] Vagina > Uterus > Cervix > Oviduct
[D] Vagina > Fallopian tube > Cervix > Uterus

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38. Blue-Green algae are __
[A] Symbiotic Nitrogen-Fixing Cyanobacteria
[B] Free-Living Nitrogen-Fixing Bacteria
[C] Loose Association of Nitrogen-Fixing Bacteria
[D] Symbiotic Nitrogen-Fixing Bacteria

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39. ____ being a higher category, is the assemblage of families which exhibit a few similar characters:

[A] Class
[B] Species
[C] Genus
[D] Order

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40. Which of the following blood group is a universal recipient?
[A] A
[B] B
[C] O
[D] AB

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