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 331: Which of the following is a feature of the population pyramid of a developing country? Options:
  A) long lifespan
  B) low birth rate
  C) low death rate
  D) short lifespan
  Show Answer
  The correct answer is C .
• Question 332: Secondary thickening is initiated in a dicotyledonous stem by the Options:
  A) xylem parenchyma
  B) secondary phloem
  C) endodermis
  D) cambium
  Show Answer
  The correct answer is D .
• Question 333: The function of the loop of Henle is to Options:
  A) increase the flow of urine
  B) concentrate amino acids in the kidney tissue
  C) concentrate sodium chloride in the medulla of the kidney
  D) increase the volume of urine
  Show Answer
  The correct answer is C .
• Question 334:

  

  The organism above is

  Options:
  A) chlamydomonas
  B) algae
  C) volvox
  D) euglena
  Show Answer
  The correct answer is C .
• Question 335: 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 .
• Question 336:

  

  The structure labelled X is used by the organism in the same way as man uses his

  Options:
  A) oesophagus
  B) trachea
  C) stomach
  D) intestine
  Show Answer
  The correct answer is A .
• Question 337:

  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 338:

  

  The experimental set-up can be used to demonstrate that

  Options:
  A) light is necessary for photosynthesis
  B) oxygen is necessary for photosynthesis
  C) photosynthesis occurs in the leaves of plants
  D) carbon (IV) oxide is necessary for photosynthesis
  Show Answer
  The correct answer is D .
• Question 339: The mutation theory of organic evolution was propounded by Options:
  A) Gregor Mendel
  B) Hugo de Vries
  C) Jean Lamarck
  D) Charles Darwin
  Show Answer
  The correct answer is B .
• Question 340:
  

  Which level of the pyramid has the least total stored energy?

  Options:
  A) E
  B) F
  C) G
  D) H
  Show Answer
  The correct answer is D .