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 451: The smallest living organism which share the characteristics of both living and non-living matter are Options:
  A) bacteria
  B) fungi
  C) viruses
  D) protozoa
  Show Answer
  The correct answer is C .
• Question 452:

  I. Rattus rattus II. Agama agama III. Bufo regularis IV. tilipia zilli

  The order of evolutionary advancement to the above vertebrates is

  Options:
  A) I, II, III, IV
  B) I, IV, III, II
  C) II, III, IV, I
  D) IV, III, II, I
  Show Answer
  The correct answer is D .
• Question 453:

  Which of the following characteristics is typical of the phylum Arthropoda?

  Options:
  A) Radial symmetry
  B) Closed circulatory system
  C) Endoskeleton made of bones
  D) Presence of a segmented body
  Show Answer
  The correct answer is D .
• Question 454:

  One of the functions of water in seed germination is to?

  Options:
  A) dilute the embryo
  B) make the soil wet and soft
  C) activate the enzymes
  D) promote aerobic respiration
  Show Answer
  The correct answer is C .
• Question 455: A plant which grows on another plant without apparent harm to the host plant is called Options:
  A) a parasite
  B) an epiphyte
  C) a saprophyte
  D) a predator
  E) a hermaphrodite
  Show Answer
  The correct answer is B .
• Question 456: The manufacture of carbohydrates by plants takes place only in Options:
  A) the leaves
  B) the green stems
  C) chlorophyllous parts
  D) flowering plants
  Show Answer
  The correct answer is C .
• Question 457: In mammalian males, the excretory and reproductive systems share the Options:
  A) Ureter
  B) vas deferens
  C) Urethra
  D) Testes
  Show Answer
  The correct answer is C .
• Question 458: If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be Options:
  A) 2:1
  B) 1:2
  C) 1:1
  D) 1:3
  E) 3:1
  Show Answer
  The correct answer is C .
• Question 459: Chemosynthetic organisms are capable of manufacturing their food from simple inorganic substances through the process of Options:
  A) oxidation
  B) denitrification
  C) reduction
  D) phosphorylation
  Show Answer
  The correct answer is A .
• Question 460:

  Mineral salts can be absorbed into roots by

  Options:
  A) Osmosis only
  B) Osmosis and diffusion
  C) Diffusion and active transport
  D) Imbition only
  Show Answer
  The correct answer is C .