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 251:

  Which type of reproduction involves the fusion of gametes from two parents?

  Options:
  A) Sexual reproduction
  B) Asexual reproduction
  C) Binary fission
  D) Budding
  Show Answer
  The correct answer is A .
• Question 252: When spirogyra cell is immersed in a salt solution more concentrated than its cell sap, it Options:
  A) Remains unchanged
  B) Takes up water an burst
  C) Absorbs a little water
  D) Loses water and shrivels
  E) Becomes turgid
  Show Answer
  The correct answer is D .
• Question 253: An instrument used in measuring the speed of wind is Options:
  A) a barometer
  B) a wind gauge
  C) a wind vane
  D) an anemometer
  E) a hydrometer
  Show Answer
  The correct answer is D .
• Question 254:

  The feeding relationship that exists between a tick and a cow is?

  Options:
  A) parasitism
  B) mechanism
  C) saprophytism
  D) commensalism
  Show Answer
  The correct answer is A .
• Question 255: which of these diseases cannot be controlled by killing the vector? Options:
  A) River blindness
  B) Malaria
  C) Polio
  D) Cholera
  E) Bilharzia (shistosoma)
  Show Answer
  The correct answer is C .
• Question 256: In the gene locus for eye colour in humans, the allele for brown eye is dominant over the allele for blue eyes. If a homozygous brown-eyed girl has a brother with blue eyes, what are the likely phenotypes of there parents'eye colour (Eye colour is not a sex linked trait) Options:
  A) Both parents have blue eyes
  B) Their father has blue eyes and their mother has brown eyes
  C) both parents have brown eyes
  D) Their mother has the blue eyes and their father has the brown eyes
  Show Answer
  The correct answer is C .
• Question 257:

  Viruses are considered to be living organisms because they

  Options:
  A) possess transmittable characters
  B) move from one place to another
  C) respond to stimulation
  D) ingest food materials
  Show Answer
  The correct answer is A .
• Question 258:

  Ecological succession refers to

  Options:
  A) The movement of organisms from one habitat to another
  B) The competition among species for limited resources
  C) The process of natural selection in a population
  D) The gradual and predictable change in a community over time
  Show Answer
  The correct answer is D .
• Question 259: The process in which complex substances are broken down into simpler ones is referred to as Options:
  A) anabolism
  B) catabolism
  C) metabolism
  D) tropism
  Show Answer
  The correct answer is B .
• Question 260: The bone of the neck on which the skull rests is known as the Options:
  A) odontoid process
  B) axis
  C) atlas
  D) occipital condyle
  Show Answer
  The correct answer is C .