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 1:

  The number of times an organism occurs within a given area of a habitat is referred to as

  Options:
  A) Population growth rate
  B) Population frequency
  C) Population growth rate
  D) Population density
  Show Answer
  The correct answer is B .
• Question 2:

  Which of the following represents the correct hierarchical organization of life from the smallest to the largest scale?

  Options:
  A) Organs, tissues, cells, organisms, populations, communities, ecosystems
  B) Cells, organs, tissues, organisms, populations, communities, ecosystems
  C) Tissues, organs, cells, organisms, populations, communities, ecosystems
  D) Cells, tissues, organs, organisms, populations, communities, ecosystems
  Show Answer
  The correct answer is D .
• Question 3:

  What is the primary function of the liver in the human body?

  Options:
  A) Regulation of body temperature
  B) Regulation of blood pressure
  C) Production of hormones
  D) Detoxification and metabolism of nutrients and drugs
  Show Answer
  The correct answer is D .
• Question 4: Alkaline pyrogallol was used in an experiment. That experiment must have been connected with Options:
  A) Excretion
  B) Germination
  C) Transpiration
  D) Digestion
  E) Photosynthesis
  Show Answer
  The correct answer is E .
• Question 5: The excessive use of agro-chemicals could lead to the pollution of Options:
  A) the lithosphere
  B) the atmosphere
  C) fresh water
  D) space
  Show Answer
  The correct answer is C .
• Question 6: The most important substance necessary for the maintenance of life are carbon , oxygen Options:
  A) hydrogen, soil and enzymes
  B) hydrogen, salt and water
  C) nitrogen, salt and soil
  D) nitrogen, salt and water
  Show Answer
  The correct answer is D .
• Question 7:

  What is the function of contractile vacuole in paramecium?

  Options:
  A) Produces Enzymes
  B) Gets rid of excreta
  C) Stores and digest food
  D) Gets rid of excess water
  Show Answer
  The correct answer is D .
• Question 8: Which one of the following statements about the mammalian kidney is false? Options:
  A) The glomerulus is formed by a branch of the renal artery
  B) The glomerulus is a part of uniferous tubules
  C) Tha bowmans capsule is in the cortex of the kidney
  D) The uniferous tubules are richly supplied with blood vessels
  E) The glomerulusis lodged in the bowmans capsule
  Show Answer
  The correct answer is B .
• Question 9: In a group of male Agama lizards, the one with the brightest head colour is the Options:
  A) dominant
  B) youngest
  C) oldest
  D) largest
  Show Answer
  The correct answer is A .
• Question 10:

  

  In the diagram, the genotypic ratio of the offspring of the cross is

  Options:
  A) 1:2
  B) 1:2:1
  C) 1:1:1:1
  D) 3:1
  Show Answer
  The correct answer is B .