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 1641:

  

  Use the diagram above to answer this question.

  The part labelled l is the

  Options:
  A) pulmonary artery
  B) vena cava
  C) aorta
  D) bicuspid valve
  Show Answer
  The correct answer is C .
• Question 1642: Insects that goes through adult stage without becoming pupa are except ________ Options:
  A) crickets
  B) cockroach
  C) grasshopper
  D) bees
  Show Answer
  The correct answer is D .
• Question 1643: Grasses grasshopper lizard snakes hawks. In the food chain, the organism which are the least in number are Options:
  A) grasses
  B) grasshopper
  C) lizards
  D) snakes
  E) hawks
  Show Answer
  The correct answer is E .
• Question 1644: Germination which results in the cotyledons being brought above ground is called Options:
  A) hypocotyl
  B) epicotyl
  C) epigeal
  D) hypogeal
  E) plumule
  Show Answer
  The correct answer is C .
• Question 1645: Strong short and concical beak to pick and crush seeds is an adaptive feature of Options:
  A) duck
  B) owl
  C) weaver bird
  D) hawk
  Show Answer
  The correct answer is C .
• Question 1646:

  

  Blood is pumped into the right ventricle by the contraction of the auricle wall through

  Options:
  A) 1
  B) 3
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1647: The main structure in vertebrates that supports and protects the body is the Options:
  A) skeleton
  B) ligament
  C) muscle
  D) joint
  Show Answer
  The correct answer is A .
• Question 1648: The correct route for a piece of bread eaten by a mammal is Options:
  A) oral cavity - oesophagus - stomach - ileum - rectum
  B) oral - cavity - stomach - oesophagus - duodenum - ileum - rectum
  C) oral cavity - oesophagus - duodenum - rectum
  D) oral cavity - oesophagus - ileum - stomach - duodenum - rectum
  E) oral cavity - oesophagus - stomach - ileum - duodenum - rectum
  Show Answer
  The correct answer is A .
• Question 1649: Insect show consideration powers of water conservation. This is due to the fact that Options:
  A) The chitinous cuticle is impregnated with tanned protein
  B) Nitrogenous waste is eliminated as urea
  C) Chitin is impermeable to water
  D) The malpighian tubules are impermeable to water
  E) The curticle is covered with wax
  Show Answer
  The correct answer is C .
• Question 1650: If the phloem of a healthy plant is killed by heat treatment the Options:
  A) the upward movement of salt will cease
  B) food manufactured in the leaves will accumulate
  C) whole plant will die immediately
  D) leaves of the plant will become yellow
  Show Answer
  The correct answer is B .