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 1071: Seed plants are the most dominant vegetation on land because of Options:
  A) their motile gamates
  B) their ability to photosynthesize
  C) efficient seed dispersal
  D) availability of water
  Show Answer
  The correct answer is C .
• Question 1072: The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has Options:
  A) lower rainfall and shorter grasses
  B) less grasses and scattered trees
  C) more rainfall and taller grasses
  D) less arboreal and burrowing animals
  Show Answer
  The correct answer is C .
• Question 1073:

  

  The structure above represents a quill feather. The structure labelled 'M' is the

  Options:
  A) quill
  B) rachis
  C) superior umbilicus
  D) inferior umbilicus
  E) aftershaft
  Show Answer
  The correct answer is C .
• Question 1074:

  

  Use the diagram above to answer this question.

  The zone of physiological stress is represented by

  Options:
  A) l and ll
  B) ll only
  C) ll and lll
  D) l and lll
  Show Answer
  The correct answer is D .
• Question 1075:

  Ozone hole refers to

  Options:
  A) hole in ozone layer
  B) decrease in the ozone layer in troposphere
  C) decrease in thickness of ozone layer in stratosphere
  D) increase in the thickness of ozone layer in troposphere
  Show Answer
  The correct answer is C .
• Question 1076: At what stage in the life history of a mammal is the sex of an individual set? Options:
  A) at adolescence
  B) at puberty
  C) at birth
  D) at conception
  Show Answer
  The correct answer is D .
• Question 1077: The main function of the petal of a flower is to Options:
  A) attract pollination agents
  B) protect the flower while still in bud
  C) serve as landing stage for insects
  D) protect the inner paisr from desiccation
  Show Answer
  The correct answer is A .
• Question 1078: When an animal has a dark-coloured dorsal surface and a light-colouration ventral surface, this is an adaptation called Options:
  A) concealment colouration
  B) countershading
  C) colour blending
  D) disruptive colouration
  Show Answer
  The correct answer is B .
• Question 1079:

  The sum total of all observable features of an organism is?

  Options:
  A) phenotype
  B) heterozygous
  C) genotype
  D) homozygous
  Show Answer
  The correct answer is A .
• Question 1080: What combination of character should a prey develop to survive the environment of its predator? Options:
  A) Camouflag, well developed limbs and effective vision
  B) Showy colour, big body and well developed limbs
  C) Camouflage, big body and effective vision
  D) Showy colour, well developed muscles and an acute sense of smell
  Show Answer
  The correct answer is A .