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 51:

  Which of the following is a plant hormone responsible for promoting cell elongation and growth?

  Options:
  A) Abscisic acid
  B) Gibberellins
  C) Ethylene
  D) Cytokinins
  Show Answer
  The correct answer is B .
• Question 52: The following are methods of soil conservation EXCEPT Options:
  A) contour terracing
  B) strip cropping
  C) contour ploughing
  D) mixed grazing
  Show Answer
  The correct answer is D .
• Question 53:

  The insect trapping movements of the leaves of the venus fly trap is a behavioural adaptation for

  Options:
  A) support
  B) surviving adverse weather conditions
  C) obtaining food
  D) dormancy
  Show Answer
  The correct answer is C .
• Question 54:

  What is the primary source of variation in a population?

  Options:
  A) Gene flow
  B) Mutation
  C) Natural selection
  D) Genetic drift
  Show Answer
  The correct answer is B .
• Question 55:

  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 56: The type of reproduction that is common to both Hydra and yeast Options:
  A) conjugation
  B) binary fission
  C) grafting
  D) budding
  Show Answer
  The correct answer is D .
• Question 57: 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 58:

  The movement of blood between the heart and all other parts of the body beside the lungs is

  Options:
  A) Double circulatory system
  B) Pulmonary system
  C) Single circulation
  D) Systemic circulation
  Show Answer
  The correct answer is D .
• Question 59:

  Which of the following food substances will produce a brick-red colour when warmed with Benedict's solution?

  Options:
  A) Glucose
  B) Starch
  C) Egg White
  D) Maltose
  Show Answer
  The correct answer is A .
• Question 60: From evolutionary standpoint , the older a fossil-bearing rocks is, the more likely it is to contain Options:
  A) aves as opposed to amphibians
  B) invertebrates as opposed to vertebrates
  C) angiosperms as opposed to algae
  D) vertebrates as opposed to invertebrates
  Show Answer
  The correct answer is B .