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 271: If a ring of bark and phloem is removed from a stem, the Options:
  A) plant dies immediately
  B) plant dies after two days
  C) movement of food is not affected
  D) movement of minerals is hardly affected
  Show Answer
  The correct answer is D .
• Question 272: An example of a poikilothermic organism is a Options:
  A) Lizard
  B) Cockroach
  C) rabbit
  D) bird
  Show Answer
  The correct answer is A .
• Question 273: What organelle is the site of photosynthesis in plants? Options:
  A) Chloroplasts
  B) Ribosomes
  C) Cytoplasm
  D) Mitochondria
  Show Answer
  The correct answer is A .
• Question 274:

  Tall trees with buttress roots and evergreen leaves are characteristics features of?

  Options:
  A) temperate grass land
  B) Southern Guinea Savanna
  C) tropical rain forests
  D) Northern Guinea savanna
  Show Answer
  The correct answer is C .
• Question 275: Which of the following can bring about the greatest increase in the rate of transpiration? Options:
  A) Increased humidity
  B) Reduced temperature
  C) Reduced wind speed
  D) Reduced humidity
  Show Answer
  The correct answer is D .
• Question 276:
  

  The part that will develop into an organ for feeling is labelled

  Options:
  A) IV
  B) III
  C) II
  D) I
  Show Answer
  The correct answer is D .
• Question 277: The mammalian lung is made air tight by the Options:
  A) pleural cavity
  B) mucous membrane
  C) pleural membrane
  D) diaphragm
  Show Answer
  The correct answer is C .
• Question 278: The mode of nutrition exhibited by a tapeworm is Options:
  A) symbiotic
  B) saprophytic
  C) parasitic
  D) holozoic
  Show Answer
  The correct answer is C .
• Question 279:

  

  The function of the structure labelled G is to

  Options:
  A) carry out initial photosynthesis for the seedlings
  B) protect the young leaves from mechanical damage
  C) protect the young leaves from sun light
  D) protect the young leaves from insects pest
  Show Answer
  The correct answer is A .
• Question 280:

  

  The figure above is a section of a drupe. The part numbered 2 is

  Options:
  A) epicarp
  B) endocarp
  C) mesocarp
  D) seed
  E) pericarp
  Show Answer
  The correct answer is C .