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 1521:

  

  Use the diagram shown to answer the question. In plant cells, the role of the membrane is played by the

  Options:
  A) nucleolus
  B) cell wall
  C) cytoplasm
  D) mitochondrion
  Show Answer
  The correct answer is B .
• Question 1522: An example of organism which exists as a colony is Options:
  A) Volvox
  B) paramecium
  C) euglena
  D) chlamydomonas
  Show Answer
  The correct answer is A .
• Question 1523: For effective functioning of a bird's quill feather, hooks fit on the ridge of the Options:
  A) Vane
  B) rachis
  C) barbules
  D) barbs
  Show Answer
  The correct answer is C .
• Question 1524: Underground stems which grow horizontally through the soil are Options:
  A) Bulbs
  B) Rhizomes
  C) Runners
  D) Corms
  E) Stolons
  Show Answer
  The correct answer is B .
• Question 1525: A seedling grown in the dark is likely to be Options:
  A) etiolated
  B) dormant
  C) sturdy
  D) stunted
  Show Answer
  The correct answer is A .
• Question 1526: Free nitrogen is released to the atmosphere by Options:
  A) Nitrogen-fixing bacteria
  B) nitrifying bacteria
  C) denitrifying bacteria
  D) saprophytic bacteria
  Show Answer
  The correct answer is C .
• Question 1527: Which of the following vertebrates does the skin function as a respiratory surface? Options:
  A) Rat
  B) Lizard
  C) Fish
  D) Frog
  Show Answer
  The correct answer is D .
• Question 1528: Most cells in higher animals retain their power of division EXCEPT Options:
  A) lymphocytes
  B) nerve cells
  C) malpighian cells
  D) germ cells
  Show Answer
  The correct answer is B .
• Question 1529: The pollutants that contribute to the depletion of the ozone layer in the atmosphere are Options:
  A) radioactive materials
  B) oxides of sulphur
  C) oxides of carbon
  D) chlorofluorocarbons
  Show Answer
  The correct answer is D .
• Question 1530:

  The greatest influence on a stable ecosystem in nature is exerted by

  Options:
  A) man
  B) pollution
  C) animals
  D) rainfall
  Show Answer
  The correct answer is A .