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:

  Which organs are part of the alimentary canal in the human digestive system?

  Options:
  A) Salivary glands, tongue, and pharynx
  B) Large intestine, appendix, and rectum
  C) Stomach, liver, and gallbladder
  D) Oesophagus, pancreas, and small intestine
  Show Answer
  The correct answer is D .
• Question 842:

  

  Use the diagram above to answer this question.

  The structure that controls loss of water vapour during transpiration is labelled

  Options:
  A) l
  B) ll
  C) lll
  D) lV
  Show Answer
  The correct answer is D .
• Question 843:

  DNA in eukaryotic cells is contained in the

  Options:
  A) central vacuole
  B) nucleus
  C) lysosome
  D) golgi body
  Show Answer
  The correct answer is B .
• Question 844: i. Growth is mainly apical ii. Growth is specific with definite shape iii. Growth is throughout life. Which of the above correctly describes the growth pattern in plants? Options:
  A) i, ii and iii only
  B) ii and iii only
  C) i and ii only
  D) i and iii only
  Show Answer
  The correct answer is D .
• Question 845: A plant tissue that carries water and mineral salts is the Options:
  A) cambium
  B) xylem
  C) cortex
  D) phloem
  Show Answer
  The correct answer is B .
• Question 846: A man with blood group a is married to a woman with blood group A. Which of the following group combinations is possible if the family has three children? Options:
  A) B, A, AB
  B) O, A, B
  C) B, AB, AB
  D) A, O, A
  Show Answer
  The correct answer is D .
• Question 847: Which of the following statements is true of blood groups and blood transfusion? Options:
  A) Group O is the universal recipient
  B) Group A can donate to group A only
  C) Group AB is the universal recipient
  D) Group B can donate to group B only
  Show Answer
  The correct answer is C .
• Question 848: The dark reaction of photosynthesis involves the Options:
  A) reduction of carbon(IV)oxide to organic
  B) release of oxygen and the splitting of water
  C) photolysis of water and the production of starch
  D) splitting of water into hydrogen
  Show Answer
  The correct answer is A .
• Question 849: Which scenario would cause a covalent bond to form? Options:
  A) Two atoms share electrons so they can fill their outer shells
  B) The constant motion of electrons and the creation of charge imbalances bonds two molecules together
  C) A hydrogen atom with a slight positive charge is attracted to a negative charge of another molecule or atom
  D) One atom loses one or more electrons and the other atom gains one or more electrons
  Show Answer
  The correct answer is A .
• Question 850: Any dry fruit which can break into several parts each containing one seed is a Options:
  A) capsule
  B) aggregrate fruit
  C) legume
  D) schizocarp
  E) follicle
  Show Answer
  The correct answer is D .