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 281: 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 282: Denitrifying bacteria in nature liberate gaseous nitrogen directly from Options:
  A) ammonium salts
  B) soil nitrates
  C) thunderstorms
  D) soil nitrites
  E) plant and animal proteins
  Show Answer
  The correct answer is B .
• Question 283:

  Only specially adapted micro-organisms are found in

  Options:
  A) Salty water
  B) Humid air
  C) Moist soil
  D) Mouth cavities
  Show Answer
  The correct answer is A .
• Question 284: One of the following is called emergency hormone in man. Options:
  A) Adrenalin
  B) Prolactin
  C) Testosterone
  D) Thyroxine
  Show Answer
  The correct answer is A .
• Question 285: 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 286:

  The feeding relationship among a set of members of a community is referred to as _______?

  Options:
  A) a food web
  B) pyramid of energy
  C) a food chain
  D) pyramid of member
  Show Answer
  The correct answer is C .
• Question 287:

  

  Which of the organisms represented are notable agricultural pests

  Options:
  A) II and IV
  B) I and IV
  C) I and III
  D) II and III
  Show Answer
  The correct answer is B .
• Question 288: IF an organism obtains its food by means of haustoria, it is said to be Options:
  A) holophytic
  B) heterophytic
  C) saprophytism
  D) parasitic
  Show Answer
  The correct answer is D .
• Question 289:

  

  The young chick is formed from

  Options:
  A) 3
  B) 3 and 4
  C) 1, 3 and 5
  D) 2
  E) 4
  Show Answer
  The correct answer is D .
• Question 290:

  Rabbits cannot survive in an aquatic habitat because they have

  Options:
  A) fore and hind limbs
  B) no gills
  C) no fins
  D) no scales
  Show Answer
  The correct answer is B .