Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 1701: Irish potato is a Options:
  A) bulb
  B) tap root
  C) rhizome
  D) root tuber
  E) stem tuber
  Show Answer
  The correct answer is E .
• Question 1702: What ecological condition favours the breeding of black flies? Options:
  A) Fresh water habitat
  B) Water in ponds and swamp
  C) Water in small containers
  D) Fast flowing streams
  Show Answer
  The correct answer is B .
• Question 1703: Mangrove swamp can be found Options:
  A) on a seashore with flat terrains
  B) where a river meets the sea
  C) on a mud flat near the sea
  D) where two rivers meet
  Show Answer
  The correct answer is B .
• Question 1704:

  Viviparity refers to the reproductive strategy in which

  Options:
  A) Offspring are produced by internal fertilization
  B) Offspring are produced by external fertilization
  C) Offspring develop and are nourished inside the female's body
  D) Offspring develop and are nourished outside the female's body
  Show Answer
  The correct answer is C .
• Question 1705: In Nigeria, the guinea savanna belt borders the Options:
  A) mangrove swamps and the sahel savanna
  B) rainforests and the sudan savanna
  C) desert and the sudan savanna
  D) rainforests and the deserts
  Show Answer
  The correct answer is B .
• Question 1706: One of the following statement is NOT true of spirogyra Options:
  A) it is a simple multicellular plant
  B) during conjugation, its gametes, which are structurally and physiologically similar, fuses to form a zygote
  C) it possesses spiral chloroplast which enables the plant to photosynthesize
  D) its cells are protected externally by layer of mucilage
  E) there are pyrenoids along the chloroplast
  Show Answer
  The correct answer is B .
• Question 1707: Nitrifying bacteria are important because they Options:
  A) release nitrogen to the atmosphere
  B) convert atmospheric nitrogen to ammonia
  C) combine ammonia with nitrgen
  D) oxidize ammmonium salt to nitrates
  Show Answer
  The correct answer is D .
• Question 1708: In an ecosystem, the LEAST efficient energy transfer link is from Options:
  A) producers to primary consumers
  B) sun to producers
  C) primary consumers to secondary consumers
  D) secondary consumers to decomposers
  Show Answer
  The correct answer is D .
• Question 1709:

  The correct sequence of the movement of urea during urine formation is?

  Options:
  A) glomerulus ---> Bowman's capsule -> convoluted tubule ---> Henle's loop -> collecting- tubule
  B) glomerulus -> Bowman's capsule -> convoluted tubule -> Henle's loop -> convoluted tubule -> collecting tubule
  C) convoluted tubule -> glomerulus --> Nettle's loop -> Bowman's capsule->collecting tubule
  D) convoluted tubule -> Bowman's capsule -> Henle's loop -7> glomerulus -> collecting tubule
  Show Answer
  The correct answer is A .
• Question 1710:
  

  From the diagram above the optimal temperature for breeding cockroaches is

  Options:
  A) 15^oC
  B) 19^oC
  C) 24^oC
  D) 33^oC
  Show Answer
  The correct answer is C .