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 841: The blood vessel which carries digested food from the small intestine to the liver is the Options:
  A) Renal vain
  B) Renal artery
  C) Hepatic artery
  D) Hepatic portal vein
  E) Coelic artery
  Show Answer
  The correct answer is D .
• Question 842:

  

  Use the diagram above to answer this question.

  Insulin is produced by the endocrine organ labelled

  Options:
  A) IV
  B) III
  C) II
  D) I
  Show Answer
  The correct answer is B .
• Question 843: Viruses are considered to be living organisms because they Options:
  A) possess transmittable characters
  B) move from one place to another
  C) respond to stimulation
  D) ingest food materials
  Show Answer
  The correct answer is A .
• Question 844: Mineral salts can be absorbed into the roots by Options:
  A) osmosis only
  B) osmosis and diffusion
  C) diffusion and active transport
  D) imbibition only
  Show Answer
  The correct answer is C .
• Question 845: The stream-lined shape of fishes is an adaptation for Options:
  A) Securing mates
  B) easy movement
  C) obtaining food
  D) defence and attack
  Show Answer
  The correct answer is B .
• Question 846: The hygrometer is used for measuring Options:
  A) relative humudity
  B) specific gravity
  C) rainfall
  D) salinity
  Show Answer
  The correct answer is A .
• Question 847: The excretory organ in insects is the Options:
  A) kidney
  B) malpighian tubule
  C) flame cell
  D) nephridium
  Show Answer
  The correct answer is B .
• Question 848: If the pair of alleles for baldness is given as Bb, a female carrier will be denoted by Options:
  A) X^bY^B
  B) X^BX^B
  C) X^BY
  D) X^BbX^b
  Show Answer
  The correct answer is D .
• Question 849: An organism found on a bare rock surface has features of algae and fungi. The organism is Options:
  A) an epiphyte
  B) a lichen
  C) a bryophyte
  D) a fern
  Show Answer
  The correct answer is B .
• Question 850:

  

  In the diagram, the experiment demonstrates

  Options:
  A) geotropism
  B) thigmotropism
  C) phototropism
  D) hydrotropism
  Show Answer
  The correct answer is A .