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 941:

  Which of the following is a primary source of pollution in aquatic ecosystems?

  Options:
  A) Soil erosion
  B) Industrial discharge
  C) Air pollution
  D) Deforestation
  Show Answer
  The correct answer is B .
• Question 942: An argument against Lamarck's theory of evolution is that Options:
  A) disuse of body part cannot weaken the part
  B) disused part is dropped off in the offspring
  C) acquired traits cannot be passed on to the offspring
  D) trait cannot be acquired through constant use of body parts
  Show Answer
  The correct answer is C .
• Question 943: Birds maintain their body temperature with the help of their Options:
  A) blood which maintains constant temperature
  B) feathers which cover the body
  C) skin which conserves moisture
  D) veins which transport fluid of constant temperature to all body tissues
  Show Answer
  The correct answer is B .
• Question 944: A food substance was treated with a few drops of Sudan III solution and a red coloration was obtained. The food contained Options:
  A) protein
  B) starch
  C) fat
  D) mineral salt
  Show Answer
  The correct answer is C .
• Question 945: The correct increasing order of size for the cell components responsible for heredity is Options:
  A) chromosome → DNA → nucleus → gene
  B) DNA → gene → chromosome → nucleus
  C) chromosome → nucleus → DNA → gene
  D) DNA → gene → nucleus → chromosome
  Show Answer
  The correct answer is B .
• Question 946: Which of the following groups of cells is devoid of true nuclei Options:
  A) algae
  B) monera
  C) fungi
  D) viruses
  Show Answer
  The correct answer is B .
• Question 947: Which of the following statements is NOT true of mammalian erythrocytes? Options:
  A) They have haemoglobin
  B) they appear yellow when looked at singly
  C) They are disc shaped
  D) The cell are more numerous than leucocytes
  E) They have nuclei at maturity
  Show Answer
  The correct answer is E .
• Question 948:

  What is the term used to describe biotic and abiotic factors in the environment of the organism?

  Options:
  A) habitat
  B) biome
  C) ecosystem
  D) ecological niche
  Show Answer
  The correct answer is C .
• Question 949: Hydrostatic skeleton is the type of supporting system found in Options:
  A) mammals
  B) reptiles
  C) oligochaetes
  D) arthropods
  Show Answer
  The correct answer is C .
• Question 950: The functions of endoplasmic reticulum is Options:
  A) protein synthesis
  B) intracellular transport of materials
  C) digestion and destruction of foreign bodies
  D) production of energy from glucose
  Show Answer
  The correct answer is B .