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 91: The possession of scales, laying of eggs with shells and bony structure of the head are characteristics shared by Options:
  A) birds and reptiles
  B) fishes and birds
  C) reptiles and fishes
  D) birds and molluscs
  Show Answer
  The correct answer is A .
• Question 92:

  The above organism can be classified under which phylum in the animal kingdom

  Options:
  A) Nematoda
  B) Chordata
  C) Porifera
  D) Annelida
  Show Answer
  The correct answer is B .
• Question 93:

  Which of the following is a behavioural adaptation that protects prey from predators?

  Options:
  A) Hibernation
  B) Shedding of leaves
  C) Secreting irritating fluid
  D) Dormancy
  Show Answer
  The correct answer is C .
• Question 94:

  

  In the diagram, the genotypic ratio of the offspring of the cross is

  Options:
  A) 1:2
  B) 1:2:1
  C) 1:1:1:1
  D) 3:1
  Show Answer
  The correct answer is B .
• Question 95: Secondary thickening in dicotyledonous stem is controlled by the Options:
  A) xylem
  B) phloem
  C) cambium
  D) pericycle
  Show Answer
  The correct answer is C .
• Question 96: Spirogyra reproduces vegetatively by Options:
  A) spore production
  B) fragmentation
  C) multiple fission
  D) budding
  E) binary fission
  Show Answer
  The correct answer is B .
• Question 97: An example of an endospermous seed is Options:
  A) been seed
  B) cashew nut
  C) cotton seed
  D) maize grain
  Show Answer
  The correct answer is D .
• Question 98: Which of the substance listed below is a trace element of plants? Options:
  A) Potassium
  B) Sodium
  C) Copper
  D) Phosphate
  E) Nitrate
  Show Answer
  The correct answer is C .
• Question 99: Airspace are characteristic of seeds of fruits dispersed by Options:
  A) birds
  B) water
  C) wind
  D) explosive mechanism
  Show Answer
  The correct answer is B .
• Question 100: One common characteristic of fungi, algae, mosses and ferns is that they Options:
  A) show alternation of generations
  B) reproduce sexually by conjugation
  C) produce spores that are dispersed
  D) possess chlorophyll in their tissues
  Show Answer
  The correct answer is C .