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 2211:

  

  In the diagram, the type of adaptation shown in the larva is

  Options:
  A) mimicry
  B) countershading
  C) flash colaration
  D) cisruptive colaration
  Show Answer
  The correct answer is D .
• Question 2212:

  The basis of growth involves the following processes except

  Options:
  A) Cell reduction
  B) Cell division
  C) Cell enlargement
  D) Cell differentiation
  Show Answer
  The correct answer is A .
• Question 2213:

  

  Which of the structure becomes the seed coat after fertilization?

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  E) 5
  Show Answer
  The correct answer is C .
• Question 2214:

  Use the diagram to answer the question.

  The structure labelled i is

  Options:
  A) photosensitive
  B) radiosensitive
  C) chemoreceptive
  D) tactile
  Show Answer
  The correct answer is D .
• Question 2215: If R and r, denotes the genes for a character, the offspring of the cross between RR and Rr are Options:
  A) RR, 2Rr, rr
  B) 2RR, 2rr, 2rr
  C) 2RR, 2Rr
  D) 4Rr
  Show Answer
  The correct answer is C .
• Question 2216:

  One of the following is a process of transmission of hereditary characteristics by chromosomes

  Options:
  A) Genes relating to the same character occupy identical locations on the chromosomes
  B) Separation of homologous chromosomes into four daughter cells
  C) Separation of gametes during fertilization
  D) Dictating the formation of a protein by a gene in a chromosome
  Show Answer
  The correct answer is D .
• Question 2217: which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing? Options:
  A) Medulla
  B) Cerebrum
  C) Cerebellum
  D) Pineal body
  E) Olfactory lobe
  Show Answer
  The correct answer is A .
• Question 2218:

  Which of the following is most advanced in the evolutionary trend of animals?

  Options:
  A) Liverfluke
  B) Earthworm
  C) Snail
  D) Cockroach
  Show Answer
  The correct answer is D .
• Question 2219: ‘Jointed skeleton’ is absent in the Options:
  A) Cockroach
  B) Spider
  C) Millipede
  D) Snail
  E) Dragon fly
  Show Answer
  The correct answer is D .
• Question 2220: Which of the following is a plant excretory product? Options:
  A) Oil
  B) Cytokinin
  C) Resin
  D) Amino acids
  Show Answer
  The correct answer is C .