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 511: Insects that goes through adult stage without becoming pupa are except ________ Options:
  A) crickets
  B) cockroach
  C) grasshopper
  D) bees
  Show Answer
  The correct answer is D .
• Question 512: Root hairs are developed from the Options:
  A) root apex
  B) epidermis of root
  C) vascular bundles
  D) endodermis
  E) pericycle
  Show Answer
  The correct answer is B .
• Question 513: One of the following is the unit of life Options:
  A) cell
  B) tissues
  C) organ
  D) system
  Show Answer
  The correct answer is A .
• Question 514:

  Germination is the process in which a seed

  Options:
  A) Begins to photosynthesize
  B) Develops into a mature plant
  C) Absorbs nutrients from the soil
  D) Breaks dormancy and starts to grow
  Show Answer
  The correct answer is D .
• Question 515: Example of water-borne and sex linked diseases are Options:
  A) taeniasis and malaria
  B) cholera and gonorrhoea
  C) typhoid and syphilis
  D) dracunculiasis and haemophilia
  Show Answer
  The correct answer is D .
• Question 516: The slender, long and slightly curved beak of the sun-bird is an adaptation for breeding for feeding on Options:
  A) nectar
  B) small seeds
  C) big seeds
  D) insects
  Show Answer
  The correct answer is A .
• Question 517:

  

  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 518:

  

  The experimental set-up can be used to demonstrate that

  Options:
  A) light is necessary for photosynthesis
  B) oxygen is necessary for photosynthesis
  C) photosynthesis occurs in the leaves of plants
  D) carbon (IV) oxide is necessary for photosynthesis
  Show Answer
  The correct answer is D .
• Question 519:

  Which of the following describes an example of fertilization in higher organisms?

  Options:
  A) Fusion of sperm and egg nuclei
  B) Pollen grain landing on a sticky stigma
  C) Ejaculation of the egg and pollen grain
  D) Ejaculation of sperm into the female body
  Show Answer
  The correct answer is A .
• Question 520:

  Which of the following relationship involves only one organism?

  Options:
  A) Saprophytism
  B) Commensalism
  C) Parasitism
  D) Symbiosis
  Show Answer
  The correct answer is A .