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 721: The vector that transmit trypanosome is the Options:
  A) butterfly
  B) housefly
  C) mosquito
  D) tsetse fly
  Show Answer
  The correct answer is D .
• Question 722:

  

  Which of these plays no role in photosynthesis?

  Options:
  A) 9
  B) 8
  C) 5
  D) 2
  E) 3
  Show Answer
  The correct answer is D .
• Question 723: Lack of space in a population could lead to an increase in Options:
  A) water scarcity
  B) birth rate
  C) disease rate
  D) dought
  Show Answer
  The correct answer is C .
• Question 724: Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because Options:
  A) the deposit have remains of organisms characteristic of when they were formed
  B) different strata have remains of organisms of the same kind
  C) only organisms with strong parts are fossilized
  D) most animal and plant fossils bear little resemblance to present day living specimens
  Show Answer
  The correct answer is A .
• Question 725: The mouth parts of the housefly are adapted for Options:
  A) Lapping and sponging
  B) Sucking and chewing
  C) Piercing and sucking
  D) Chewing and lapping
  E) Biting and chewing
  Show Answer
  The correct answer is A .
• Question 726: Vegetation propagation is described as asexual reproduction because Options:
  A) reproductive organs are not involved
  B) new individuals are not formed
  C) many new plants are produced
  D) there is no exchange of genetic materials
  Show Answer
  The correct answer is D .
• Question 727: What is the genetic ratio of the F₂ generation if members of F generation are allowed to self-pollinate? Options:
  A) 1 tall : 3 short
  B) 3 tall : 1 short
  C) 1 tall : 1 short
  D) 4 short : 0 tall
  E) 4 tall : 0 short
  Show Answer
  The correct answer is B .
• Question 728: which of the following is an agent of a sexually transmitted disease? Options:
  A) Entamoeba histolytica
  B) Salmonella typhi
  C) Treponema pallidum
  D) Clostridium tetani
  Show Answer
  The correct answer is C .
• Question 729: In community, bacteria and fungi are referred to as Options:
  A) producers
  B) decomposers
  C) scavengers
  D) consumers
  Show Answer
  The correct answer is B .
• Question 730:

  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 .