Biology MCQs

31. Which of the following is not a function of Ethylene?
[A] stimulates the conversion of starch and acids to sugars
[B] promotes germination in some cereals
[C] stimulate shoot elongation, seed germination
[D] fruit ripening, flower wilting, and leaf fall

Show Answer

32. Which of the following organisms can reproduce through regeneration?
[A] Hydra
[B] Yeast
[C] Plasmodium
[D] Planaria

Show Answer

33. What is the common name of a devilfish?
[A] Loligo
[B] Sepia
[C] Teredo
[D] Octopus

Show Answer

34. What is the class of Mytilus?
[A] Arthropoda
[B] Amphineura
[C] Bivalvia
[D] None of these

Show Answer

35. Why is the bladder absent in birds?
[A] Due to disturbs equilibrium of birds
[B] Due to Urine is absent
[C] Due to Solid excretory product
[D] All of them

Show Answer

36. What are the shape of the malleus and aural bone marrow?
[A] Oval shaped
[B] Hammer shaped
[C] Horseshoe-shaped
[D] None of the above

Show Answer

37. The human urinary bladder can hold up to ___ml of urine
[A] 400 ml
[B] 600 ml
[C] 800 ml
[D] 1000 ml

Show Answer

38. Which of the following female reproductive organs produces female gametes?
[A] Ovaries
[B] Uterus
[C] Fallopian tubes
[D] Vagina

Show Answer

39. Which organ is affected by Japanese encephalitis?
[A] brain and spinal cord
[B] lungs
[C] liver and pancreas
[D] heart

Show Answer

40. Syphilis is a bacterial infection usually spread by __
[A] Sexual contact
[B] Wound infection
[C] Air-borne droplets
[D] None of these

Show Answer