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 2041: Normally any character shown by an organism is due to the effects of Options:
  A) hormones and chromosomes
  B) chromosomes
  C) mutation
  D) hormones and genes
  E) genes and enviroment
  Show Answer
  The correct answer is E .
• Question 2042: The two types of human tapeworm can be distinguished by the presence or absence of Options:
  A) scolex
  B) hook
  C) head
  D) sucker
  E) proglottis
  Show Answer
  The correct answer is B .
• Question 2043: 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 2044: Which of these is not an enzyme? Options:
  A) Pepsin
  B) Gastrin
  C) Amylase
  D) Chymotrypsin
  E) Trypsin
  Show Answer
  The correct answer is B .
• Question 2045: In an agricultural ecosystem, the biotic component consists of Options:
  A) crop, pest and beneficial insects
  B) crops, temperature and humidity
  C) pests, beneficial insects and water
  D) crops, water and soil
  Show Answer
  The correct answer is A .
• Question 2046: 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 2047: The major limiting factor of productivity in the aquatic habitat is Options:
  A) Food
  B) Temperature
  C) Water
  D) Sunlight
  Show Answer
  The correct answer is A .
• Question 2048:

  Use the diagram to answer the question.

  The structure labelled i is

  Options:
  A) photosensitive
  B) radiosensitive
  C) chemoreceptive
  D) tactile
  Show Answer
  The correct answer is D .
• Question 2049:

  A pollutant that is mostly associated with acid rain is

  Options:
  A) Nitrogen (IV) oxide
  B) Ozone
  C) Flourine
  D) Carbony (IV) oxide
  Show Answer
  The correct answer is A .
• Question 2050: Which of the following has cones? Options:
  A) Angiosperms
  B) Gymnosperms
  C) Pteridophyte
  D) Bryophyte
  Show Answer
  The correct answer is B .