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 2051: Farmers practise crop rotation because it Options:
  A) helps to prevent soil erosion
  B) allows two crops to be planted at the same time
  C) helps to conserve soil fertility
  D) is an alternate to shifting cultivation
  Show Answer
  The correct answer is C .
• Question 2052: Erythrocytes are known as ________ Options:
  A) white blood cell
  B) red blood cells
  C) phagocytes
  D) leucocytes
  Show Answer
  The correct answer is B .
• Question 2053: In an ecosystem, animals which feed directly on plants are called Options:
  A) secondary consumers
  B) primary consumers
  C) producers
  D) predators
  Show Answer
  The correct answer is B .
• Question 2054: Which of the following are differentiated into true roots, stems and leaves Options:
  A) Algae
  B) Schizophyta
  C) Pteridophyta
  D) Bryophyta
  Show Answer
  The correct answer is C .
• Question 2055: The micro-organisms that causes Typhoid disease is Options:
  A) trypanosome gambiense
  B) Salmonella typhi
  C) entamocbahistolytica
  D) plasmodium sp
  Show Answer
  The correct answer is B .
• Question 2056: A secchi disc is used in the determination of Options:
  A) Rainfall
  B) Tides
  C) Waves
  D) Turbidity
  E) Current velocity
  Show Answer
  The correct answer is D .
• Question 2057:

  Red blood cells were found to have burst open after being placed in distill for an hour. This phenomenon is known as

  Options:
  A) plasmolysis
  B) diffusion
  C) haemolysis
  D) wilting
  Show Answer
  The correct answer is C .
• Question 2058: Spirogyra, Euglena and Chlamydomonas share many characteristics EXCEPT Options:
  A) nutrition
  B) reproduction
  C) mobility
  D) irritability
  Show Answer
  The correct answer is C .
• Question 2059: If an animal is very active and has good muscular control, it is likely to have well-developed Options:
  A) Olfactory lobes
  B) Cerebral hemisphere
  C) Optic lobes
  D) Cerebellum
  E) Spinal cord
  Show Answer
  The correct answer is D .
• Question 2060: Which of following movements occur during exhalation? Options:
  A) The diaphragm and intercostal muscles relax
  B) The thoracic cavity increases in volume
  C) The diaphragm and intercostal muscles contract
  D) The diaphragm contracts and the intercostal muscle relax
  Show Answer
  The correct answer is A .