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 491:

  

  Use the diagram to answer the question. The breeding posture illustrated in the diagram is known as

  Options:
  A) mating
  B) amplexus
  C) courtship display
  D) reproductive swimming
  Show Answer
  The correct answer is B .
• Question 492: The loud cry made by a brooding hen when a predator is around is meant to Options:
  A) alert the poultry attendants
  B) attract cocks to come and fight the predator
  C) advertise the boundaries of its territory to intruders
  D) warn its chicks and other chickens of impending danger
  Show Answer
  The correct answer is D .
• Question 493: Nervous control differs from hormonal control in that the former Options:
  A) involves only chemical transmision
  B) is a lower process
  C) produces short-term changes
  D) has no specific pathway
  Show Answer
  The correct answer is C .
• Question 494: What is the genetic ratio of a cross between homozygous tall plant and a homozygous dwarf plant? Options:
  A) 0 tall : 4 short
  B) 3 tall : 1 short
  C) 2 short : 2 tall
  D) 1 tall : 1 short
  E) 4 tall : o short
  Show Answer
  The correct answer is E .
• Question 495: A plant parenchyma cell also acts as a supporting tissue when it Options:
  A) becomes flaccid
  B) contains crystals
  C) becomes turgid
  D) is pigmented
  Show Answer
  The correct answer is C .
• Question 496: Fertilization in humans usually takes place in the Options:
  A) lower part of the uterus
  B) upper part of the uterus
  C) lower part of the oviduct
  D) upper part of the oviduct
  Show Answer
  The correct answer is D .
• Question 497: The recycling method of solid waste disposal is unsuitable for Options:
  A) organic matter
  B) glass
  C) plastic
  D) metal scraps
  Show Answer
  The correct answer is A .
• Question 498:

  

  The part labelled III is for

  Options:
  A) protection
  B) insulation
  C) lubrication
  D) growth
  Show Answer
  The correct answer is B .
• Question 499: Both recessive and dominant characters are found Options:
  A) on different chromosomes in the cell
  B) at the same locus of a homologous chromosome
  C) at different loci of a homologous chromosome
  D) on the same chromatid in a chromosome
  Show Answer
  The correct answer is B .
• Question 500: Fibrinogen and prothrombin play important roles in the Options:
  A) deamination of proteins
  B) clotting of blood
  C) detoxication of substance
  D) storage of vitamins
  Show Answer
  The correct answer is B .