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 201: In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the Options:
  A) movement of auxins away from the region of curvature
  B) even distribution of auxins in all parts of the coleoptile
  C) inhibition of growth by auxins in the region f smaller curvature
  D) concentration of auxins in the region of curvature
  E) absence of auxins in the coleoptile
  Show Answer
  The correct answer is D .
• Question 202:

  Which of the following statements about viruses is true?

  Options:
  A) Viruses can reproduce outside of a host cell
  B) Viruses require a host cell to replicate
  C) Viruses possess a cellular structure
  D) Viruses are living organisms
  Show Answer
  The correct answer is B .
• Question 203: What is the primary function of cofactors? Options:
  A) To aid in enzyme function
  B) To synthesize enzymes
  C) To inhibit enzymes
  D) To break down old enzymes
  Show Answer
  The correct answer is A .
• Question 204: Insects that goes through adult stage without becoming pupa are except ________ Options:
  A) crickets
  B) cockroach
  C) grasshopper
  D) bees
  Show Answer
  The correct answer is D .
• Question 205: For growth to occur in organisms, the rate of Options:
  A) food storage must be low
  B) catabolism must exceed that of anabolism
  C) anabolism must exceed that of catabolism
  D) food storage must be high
  Show Answer
  The correct answer is C .
• Question 206:

  Examples of micronutrients include the following except

  Options:
  A) vitamins A
  B) Vitamin B6
  C) Biotin
  D) carbon
  Show Answer
  The correct answer is D .
• Question 207: The sensory cell that responds to dim light is referred to as the Options:
  A) cone
  B) lens
  C) rod
  D) iris
  Show Answer
  The correct answer is C .
• Question 208: The male toad differs from the female by having Options:
  A) Vocal sacs
  B) Shorter hind limbs
  C) Longer fore limbs
  D) Bulging eyes
  E) Nictating membranes
  Show Answer
  The correct answer is A .
• Question 209: A major difference between platyhelminthees and coelenterates is that platyhelminthes Options:
  A) are multicellular
  B) have developed a mesoderm
  C) reproduce sexually
  D) reproduce asexually
  Show Answer
  The correct answer is B .
• Question 210: If a dark-skinned woman (Bb) marries an albino man (bb) and they have four children, how many of the children will be dark-skinned? Options:
  A) 3
  B) 2
  C) 1
  D) None
  Show Answer
  The correct answer is B .