Biology MCQs

31. What is the difference between compact bone and spongy bone?
[A] They have different bone marrow
[B] They are made of different materials
[C] They have different sizes of bone cells
[D] They have different arrangement of bone cells

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32. What is the name of the only moving bone in the human skull?
[A] Ethmoid bone
[B] Mandible bone
[C] Nasal bone
[D] Lacrimal bone

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33. What is the function of systemic circulation?
[A] oxygenated blood is pumped from the heart to every organ
[B] carrying deoxygenated blood away from the heart
[C] oxygenated blood is supplied to the heart
[D] None of the above

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34. Which of the following is the place of development of the embryo?
[A] Uterus
[B] Fallopian tubes
[C] A pair of ovaries
[D] Vagina

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35. What is another name for the bulbourethral gland?
[A] Meibomian gland
[B] Prostate gland
[C] Perineal gland
[D] Cowper’s gland

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36. The corpus luteum is the source of secretion of:
[A] LH
[B] Estradiol
[C] Estrogen
[D] Progesterone

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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. Which chemical is used to obtain a precipitate of pure DNA?
[A] Methanol
[B] Ether
[C] HCl
[D] Ethanol

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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 is the effect of antigen in an ill person?
[A] It increases the production of antibiotics
[B] It increases the production of W.B.C.
[C] It increases the production of anti-serum against bacteria
[D] It prevents the growth of bacteria

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