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 501: The caste of termites that lacks pigmentation is the Options:
  A) King
  B) worker
  C) soldier
  D) queen
  Show Answer
  The correct answer is B .
• Question 502: Banana, plantain and pineapple can be grouped together because they Options:
  A) produce small seeds
  B) are multiple fruit
  C) produce suckers
  D) have runners
  E) have bulbils
  Show Answer
  The correct answer is C .
• Question 503: Carbon monoxide poisons tissue by Options:
  A) constricting the blood vessels
  B) killing the cells
  C) combining with haemoglobin
  D) rupturing the blood vessels
  Show Answer
  The correct answer is C .
• Question 504: A mixture of mercurous and mercuric nitrates is added to a food substance. A white precipitates is formed which on gentle heating turns red. The food substance is Options:
  A) Protein
  B) Oil
  C) Carbohydrates
  D) Fat
  E) Fatty acid
  Show Answer
  The correct answer is A .
• Question 505: If a tall man (TT) maries a dwarf woman (gg) and they have four male children, the offspring will be Options:
  A) All short
  B) Three short and one tall
  C) Two short and two tall
  D) One short and three tall
  E) All tall
  Show Answer
  The correct answer is E .
• Question 506:

  Which of the following vertebrates has the most simple structured heart

  Options:
  A) reptile
  B) fish
  C) mammal
  D) Amphibian
  Show Answer
  The correct answer is B .
• Question 507:

  

  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 508: 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 509: Biological growth refers strictly to an increase in the Options:
  A) protoplasm of an organism
  B) number of organisms
  C) size of an organism
  D) development of form
  Show Answer
  The correct answer is A .
• Question 510:

  

  The type of interaction shown is referred to as

  Options:
  A) interspecific competition
  B) intraspecific competition
  C) mutualism
  D) cooperation
  Show Answer
  The correct answer is A .