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 351:
  

  From the diagram above, the structure labelled I is the

  Options:
  A) incus
  B) malleus
  C) hammer
  D) stapes
  Show Answer
  The correct answer is D .
• Question 352: In spirogyra, the pyrenoid Options:
  A) excretes waste products
  B) is suspended by cytoplasmic strands
  C) is mainly used for respiration
  D) usually contains starch
  E) makes the plants slimy to touch
  Show Answer
  The correct answer is D .
• Question 353: Nitrifying bacteria keep the soil fertile by Options:
  A) converting nitrate to nitrogen
  B) converting ammonium salt to nitrate
  C) converting atmospheric nitrogen to plant nitrogen
  D) converting nitrate to nitrous oxide
  E) converting atmospheric nitrogen to nitrates
  Show Answer
  The correct answer is B .
• Question 354: In which of the following groups of vertebrates is parental care mostly exhibited? Options:
  A) Aves
  B) Reptilia
  C) Amphibia
  D) Mammalia
  Show Answer
  The correct answer is D .
• Question 355: A group of organisms of different species living in a particular area is described as a Options:
  A) colony
  B) community
  C) population
  D) niche
  Show Answer
  The correct answer is B .
• Question 356:

  

  What is the name of the structure labelled 2?

  Options:
  A) Odontoid process
  B) Olecranon process
  C) Patella
  D) Condyle
  Show Answer
  The correct answer is B .
• Question 357: The plants that grow in deserts or very dry areas are referred to as Options:
  A) mesophytes
  B) hydrophytes
  C) epiphytes
  D) xerophytes
  Show Answer
  The correct answer is D .
• Question 358: What is the genetic ratio of a cross between homozygous tall plant and a homozygous dwarf plant? Options:
  A) 0 tall : 4 short
  B) 3 tall : 1 short
  C) 2 short : 2 tall
  D) 1 tall : 1 short
  E) 4 tall : o short
  Show Answer
  The correct answer is E .
• Question 359:

  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 360: The function of the fluid - filled pericadium is to Options:
  A) reduce the friction caused by the pumping movements of the heart
  B) supply the heart with organisms from attacking the heart
  C) prevent disease organism from attacking the heart
  D) reduce the intensity of the pumping
  Show Answer
  The correct answer is A .