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 171:

  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 172: 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 173:

  Which of the following blood vessels carries oxygenated blood away from the heart?

  Options:
  A) Arteries
  B) Venules
  C) Capillaries
  D) Veins
  Show Answer
  The correct answer is A .
• Question 174: 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 175: When the adults have reach a certain degree of weakness, the process of binary fission is replaced by conjugation in Options:
  A) Paramecium
  B) Euglena
  C) Amoeba
  D) Plasmodium
  Show Answer
  The correct answer is A .
• Question 176: 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 177: In vascular plants, the sieve tubes and companion cells are present in the Options:
  A) cambium
  B) cortex
  C) xylem
  D) phloem
  Show Answer
  The correct answer is D .
• Question 178:

  In the egg of a bird, the embryo is located in the

  Options:
  A) Chalaza
  B) Yolk
  C) Albumen
  D) Embryo disc
  Show Answer
  The correct answer is B .
• Question 179: The pancreatic juice contains the enzymes amylopsin, Options:
  A) pepsin and trpsinogen
  B) rennin and steapsin
  C) steapsin and trypsinogen
  D) steapsin and ptyalin
  Show Answer
  The correct answer is C .
• Question 180:

  

  The part labelled X is the

  Options:
  A) axon
  B) cell body
  C) terminal dendrites
  D) synapse
  Show Answer
  The correct answer is B .