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 1871: Which of the following groups of environmental factors are density-dependent? Options:
  A) Food, salinity, accumulation of matabolites and light
  B) Temperature, salinity predation and disease
  C) Food predation, disease and accumulation of metabolites
  D) Temperature food disease and light
  Show Answer
  The correct answer is C .
• Question 1872: A group of similar cells performing the same function is Options:
  A) an organ
  B) a system
  C) a tissue
  D) an organelle
  E) an enzymes
  Show Answer
  The correct answer is C .
• Question 1873: Blood circulation in a mammalian is said to be double because Options:
  A) it passes twice through the heart in a complete circuit
  B) it moves in both arteries and veins
  C) it circulates in both the heart and other organs
  D) the heart contain auricles and ventricles
  Show Answer
  The correct answer is A .
• Question 1874: If a woman's genotype is Tt Qq Rr, what would be the gene content of her eggs? Options:
  A) TQr, tqr
  B) TQR, tqr
  C) TqR, tQr
  D) tQr, TQR
  Show Answer
  The correct answer is B .
• Question 1875:

  Which of the following is an example of conserving resources in an ecosystem

  Options:
  A) Excessive use of chemical fertilizers in agriculture
  B) Introducing invasive species to an ecosystem
  C) Implementing sustainable fishing practices
  D) Cutting down trees for timber production
  Show Answer
  The correct answer is C .
• Question 1876: Fibrinogen and prothrombin play important roles in the Options:
  A) deamination of proteins
  B) clotting of blood
  C) detoxication of substance
  D) storage of vitamins
  Show Answer
  The correct answer is B .
• Question 1877:

  Floating microscopic heterotrophs are mostly grouped as

  Options:
  A) phytoplankton
  B) zooplankton
  C) microbes
  D) nekton
  Show Answer
  The correct answer is B .
• Question 1878: The theory which supports the view that the large muscles developed by an athlete will be passed on to the offspring was proposed by Options:
  A) lamarck
  B) darwin
  C) mendel
  D) pasteur
  Show Answer
  The correct answer is A .
• Question 1879: The major site of photosynthesis in the leaf is the Options:
  A) palisade parenchyma
  B) mesophyll parenchyma
  C) upper epidermis
  D) lower epidermis
  Show Answer
  The correct answer is A .
• Question 1880:

  The level of organization of Amoeba and Euglena cell is ________?

  Options:
  A) organ
  B) system
  C) cell
  D) tissue
  Show Answer
  The correct answer is C .