Biology MCQs

31. What is the function of the vena cava in the excretory system?
[A] form a network between the arteries to veins
[B] return deoxygenated blood from the body and the head to the heart
[C] Both 1 and 2
[D] None of these

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32. Complete digestion of food takes place in:
[A] Stomach
[B] Small Intestine
[C] Pancreas
[D] Large Intestine

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33. Which of the following is not pure endocrine gland?
[A] Thyroid gland
[B] Thymus gland
[C] Pancreas
[D] Adrenal

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34. Which is the Growth hormone inhibiting hormone?
[A] FSH
[B] TRH
[C] GHRH
[D] Somatostatin

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35. Ovum receives the sperm in the region of__
[A] Animal pole
[B] the Equator
[C] Vegetal pole
[D] Pigmented area

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36. Dirofilariasis is another name for an infection of which parasite?
[A] Heartworm
[B] Roundworm
[C] Hookworm
[D] Tapeworm

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37. Haemophilia is caused by __
[A] Bacteria
[B] Virus
[C] Genetic mutation
[D] Cause unknown

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38. Which of the following is green manure?
[A] Rice
[B] Sorghum
[C] Maize
[D] Sesbania

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39. The conversion of N2 to ammonia is known as __
[A] Nitrification
[B] Nitrogen fixation
[C] Ammonification
[D] Denitrification

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40. Which of the following initiates replication in DNA?
[A] DNA ligase
[B] Origin of replication
[C] Termination sequences
[D] Histone proteins

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