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 1111:

  The part of mammalian skin that excretes metabolic wastes is?

  Options:
  A) sweat gland
  B) horny layer
  C) Malpighian layer
  D) sebaceous gland
  Show Answer
  The correct answer is A .
• Question 1112: A tall plants crossed with a dwarf one produces offspring of which half are tall and half are dwarf. What are the genotypes of the parents? Options:
  A) TT, TT
  B) Tt, tt
  C) TT, tt
  D) Tt, Tt
  Show Answer
  The correct answer is B .
• Question 1113:

  

  The unrestricted pattern is represented by

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is B .
• Question 1114: Which of the following is a dangerous product of coal burning? Options:
  A) Sulphur dioxide
  B) Carbon dioxide
  C) Carbon
  D) Nitrogen
  Show Answer
  The correct answer is A .
• Question 1115: The genetic make-up of an organism is described as Options:
  A) Allele
  B) Chromosome
  C) Phenotype
  D) Genotype
  Show Answer
  The correct answer is D .
• Question 1116:

  In genetic counseling, a man with hemoglobin formation HbAHbS is most preferred to marry a woman of?

  Options:
  A) HbA HbA
  B) HbC HbH
  C) HbM HbF
  D) HbS HbS
  Show Answer
  The correct answer is A .
• Question 1117:

  

  From the diagram above Birth control by vasectomy is achieved by severing the structure labelled

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is C .
• Question 1118:

  Use the diagram to answer the question.

  The process of water loss and intake indicated by the arrows labelled i and ii are respectively

  Options:
  A) evaporation and osmosis
  B) osmosis and exhalation
  C) osmosis and diffusion
  D) urination and diffusion
  Show Answer
  The correct answer is B .
• Question 1119:

  

  Use the diagram above to answer this question.

  The function of the part labelled lll is to

  Options:
  A) produce egg cells
  B) protect sperms during fertilization
  C) secrete hormones during coitus
  D) protect the developing embryo
  Show Answer
  The correct answer is A .
• Question 1120: The pioneer organisms in ecological succession are usually the Options:
  A) mosses
  B) ilohens
  C) ferns
  D) algae
  Show Answer
  The correct answer is B .