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 811: Climax communities in a biotic succession are usually characterized by Options:
  A) a constant change in the appearance of the communities
  B) different species that are constantly changing
  C) a stable composition of plant and animal species
  D) rapid changes in the plant and animal species
  Show Answer
  The correct answer is C .
• Question 812: The presence of stilt roots, pneumatophores, sunken stomata and salt glands are adaptive features of plants found in the Options:
  A) tropical rainforest
  B) mangrove swamps
  C) gressland
  D) montane forest
  Show Answer
  The correct answer is B .
• Question 813: When a healthy shoot of a flowering plant is illuminated from one side, auxins, accumulate on the Options:
  A) non-illuminated side of the shoot
  B) illuminated side of the shoot
  C) upper side of the shoot
  D) lower side of the shoot
  Show Answer
  The correct answer is A .
• Question 814:

  The four classes of cnidarian include the following except

  Options:
  A) Turbellaria
  B) Anthozoa
  C) Scyphozoa
  D) Cubozoa
  Show Answer
  The correct answer is A .
• Question 815:

  

  Which parts provide food for the developing chick?

  Options:
  A) 2 and 3
  B) 4 and 5
  C) 3 and 4
  D) 2 and 5
  E) 1 and 2
  Show Answer
  The correct answer is C .
• Question 816: The tips of some rice seedlings were cut off while some were left intact. Both were covered with a container which had not only one small hole to allow light through. After twenty-four hours it was observed that Options:
  A) the cut tips was bent away from the light
  B) the cut tips bent towards source of light
  C) the intact tips bent away from the light
  D) the intact tips bent towards the light
  E) both tips bent away from light
  Show Answer
  The correct answer is D .
• Question 817: A cross between an albino female and a genetically normal male will result in offspring that are Options:
  A) all albino
  B) all phenotypically normal
  C) all genetically normal
  D) half albino and half normal
  Show Answer
  The correct answer is B .
• Question 818: Most commercial fertilizers are rich in salts of Options:
  A) sodium, iron and calcium
  B) nitrogen, phosphorus and potassium
  C) iron, copper and nitrogen
  D) calcium, sodium and phosphorus
  Show Answer
  The correct answer is B .
• Question 819:

  Petaloid sepals serve the function of

  Options:
  A) carrying out photosynthesis
  B) attracting pollinating agents to a flower
  C) retaining pollen grains in the corolla tubes
  D) protecting the inner floral parts of the flower
  Show Answer
  The correct answer is D .
• Question 820: The association between termites and the cellulose - digesting protozoans in their guts is an example of Options:
  A) saprophytism
  B) mutualism
  C) parasitism
  D) commensalism
  Show Answer
  The correct answer is B .