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 1061: The progressive loss of energy at each level in a food chain leads to Options:
  A) an increase in biomass at each successive level
  B) a decrease in biomass at each successive level
  C) an increase in the number of organism at each successive level
  D) an increase in the total number of organisms at each successive level
  Show Answer
  The correct answer is B .
• Question 1062: Which organ removes the largest amount of excess water from the body? Options:
  A) Liver
  B) Lung
  C) Kidney
  D) skin
  Show Answer
  The correct answer is C .
• Question 1063: Erosion can be reduced along shape by Options:
  A) ridging across slope
  B) ridging up slope
  C) ridging down slope
  D) crop rotation
  E) bush fallowing system
  Show Answer
  The correct answer is A .
• Question 1064: When the adults have reach a certain degree of weakness, the process of binary fission is replaced by conjugation in Options:
  A) Paramecium
  B) Euglena
  C) Amoeba
  D) Plasmodium
  Show Answer
  The correct answer is A .
• Question 1065:

  

  At which stage in this cycle can a man be infected?

  Options:
  A) 2
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is A .
• Question 1066: Which of the following reagent is used for testing the presence of protein in food? Options:
  A) Benedict solution
  B) Fetiling’s Solution
  C) Millon’s reagent
  D) Sudan III
  Show Answer
  The correct answer is C .
• Question 1067:

  

  In the diagram, The economic importance of the larva is that it

  Options:
  A) is eaten by birds
  B) develop into a moth
  C) resembles the plant on which it lives
  D) feeds on the leaves of crops
  Show Answer
  The correct answer is D .
• Question 1068: Which of the following has the most primitive respiratory system? Options:
  A) snail
  B) fish
  C) insect
  D) mouse
  Show Answer
  The correct answer is A .
• Question 1069: The group of insects that undergoes complete metamorphosis is Options:
  A) houseflies, beetles and cockroaches
  B) cockroaches, grasshoppers and bees
  C) houseflies, beetles and butterflies
  D) aphids, grasshopper and butterflies
  Show Answer
  The correct answer is C .
• Question 1070:

  Which of the following statements is true about sandy soil?

  Options:
  A) has limited air space
  B) is light and easy to dig
  C) drains slowly
  D) is heavy and poorly aerated
  Show Answer
  The correct answer is B .