Biology 2018 Past Questions | JAMB

Study the following Biology past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

41. The yellowish colored liquid component of blood that normally holds the blood cells in suspension is

  • A. serum
  • B. plasma
  • C. water
  • D. thrombocyte

 42. The function of pith in plant is

  • A. Absorb mineral salt and nutrient from the soil
  • B. Pith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant.
  • C. trap chlorophyll from the sunlight
  • D. Removal of waste product from the plant

43. A pollutant that is mostly associated with acid rain is

  • A. Nitrogen (IV) oxide
  • B. Ozone
  • C. Flourine
  • D. Carbony (IV) oxide

44. What is the function of contractile vacuole in paramecium?

  • A. Produces Enzymes
  • B. Gets rid of excreta
  • C. Stores and digest food
  • D. Gets rid of excess water

45. An organism which exhibit extracellular digestion is

  • A. Spirogyra
  • B. Paramecium
  • C. Amoeba
  • D. Rhizopus

46. How many days does is used for incubation of an egg to release chick

  • A. 21
  • B. 22
  • C. 20
  • D. 23

47. The four classes of cnidarian include the following except

  • A. Turbellaria
  • B. Anthozoa
  • C. Scyphozoa
  • D. cubozoa

48. biology past question

What would happen if solution Y is more concentrated than solution X in fig 2 

  • A. The level of X would rise, Y would falls
  • A. The level of X would rise, Y would rise
  • C. The level of X and Y stands the same
  • D. The level of Y would rise, X would fall

49. Physiological adaptation to very dry conditions in animal demonstrates

  • A. Xeromorphism
  • B. Hibernation
  • C. Aestivation
  • D. Rejuvenation

50. The hormones secreted by pancreas serves to

  • A. Facilitate the development of facial hairs
  • B. Raise the level of calcium in the blood
  • C. Lower blood glucose level
  • D. Make the body react to emergencies
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