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 1281: A food web is more stable than a food chain because Options:
  A) it contains more organisms
  B) it has greater energy source
  C) it is not easy to destroy
  D) every organism has an alternative source
  Show Answer
  The correct answer is D .
• Question 1282: The animals that move by means of flagella include Options:
  A) Chlamydomonas and Euglena
  B) Planeria and Amoeba
  C) Amoeba and Hydra
  D) Paramecium and Planeria
  Show Answer
  The correct answer is A .
• Question 1283:

  An ecological instrument used to measure wind direction is?

  Options:
  A) Secchi disc
  B) wind vane
  C) anemometer
  D) slope gauge
  Show Answer
  The correct answer is B .
• Question 1284: A feature of the caste system of bees and termites ia that Options:
  A) the workers are sterile
  B) the kings are bigger than the queens
  C) only the worker perform duties
  D) nuptial flight is performed by all members
  Show Answer
  The correct answer is A .
• Question 1285: A feature associated with the Y-chromosome in human is Options:
  A) long eyelashes
  B) prominent fingernails
  C) facial hairs
  D) enlarged breast
  Show Answer
  The correct answer is C .
• Question 1286: A non - renewable alternative source of energy is Options:
  A) wind generator
  B) solar panels
  C) nuclear energy
  D) hydroelectric power
  Show Answer
  The correct answer is C .
• Question 1287: The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with Options:
  A) denitrifying bacteria
  B) Saprophytic bacteria
  C) Rhizobium
  D) Nitrosomonas
  Show Answer
  The correct answer is C .
• Question 1288: Which of the following statements is NOT true of insectivorous plants? Options:
  A) They obtain part of their food by trapping and feeding on insects
  B) They attract insects simply because of pollination
  C) Thay can grow in soils poor in nitrogenous salts
  D) They can supplement their nitrgen supply by feeding on insects
  E) Example include butterworts, sundews and pitcher plants
  Show Answer
  The correct answer is B .
• Question 1289:

  Spirogyra reproduces vegetatively by

  Options:
  A) spore production
  B) fragmentation
  C) multiple fission
  D) budding
  E) binary fission
  Show Answer
  The correct answer is B .
• Question 1290: Which of the following statements on the mammalian circulatory system is NOT true? Options:
  A) Blood in the pulimonary artery is richer in oxygen content than blood in the pulmonary vein
  B) The blood in the hepatic portal vein is the richest in food substance
  C) Blood flow is controlled by valves in the veins
  D) Arteries are generally thicker and larger than veins
  E) Fibrin helps in the formation of blood clot
  Show Answer
  The correct answer is A .