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 81: Which of the following animals has homodont dentition? Options:
  A) Rat
  B) Man
  C) Lizard
  D) Pigeon
  Show Answer
  The correct answer is C .
• Question 82:

  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 83: The ratio of carriers to sicklers in the F₁ generation derived from a parental cross of two carriers of haemoglobin S gene is Options:
  A) 3 : 1
  B) 1 : 3
  C) 2 : 1
  D) 1 : 2
  Show Answer
  The correct answer is C .
• Question 84:

  Which of the following traits is not visible in a person with Down syndrome?

  Options:
  A) Short neck
  B) High muscle tone
  C) Small stature
  D) Slant eyes
  Show Answer
  The correct answer is B .
• Question 85: The vector for the malaria parasite is a Options:
  A) female edes mosquito
  B) female Anopheles mosquito
  C) female culex mosquito
  D) female culex mosquito
  Show Answer
  The correct answer is B .
• Question 86: Which of these is a trace element? Options:
  A) Iron
  B) Copper
  C) Calcium
  D) Sulphur
  Show Answer
  The correct answer is B .
• Question 87: One of the following exist as colony Options:
  A) euglena
  B) paramecium
  C) spirogyra
  D) volvox
  Show Answer
  The correct answer is D .
• Question 88: which of the following is an agent of a sexually transmitted disease? Options:
  A) Entamoeba histolytica
  B) Salmonella typhi
  C) Treponema pallidum
  D) Clostridium tetani
  Show Answer
  The correct answer is C .
• Question 89:

  Which of the following is an example of a behavioral adaptation for survival in animals?

  Options:
  A) Sharp teeth
  B) Migration
  C) Wings
  D) Camouflage
  Show Answer
  The correct answer is B .
• Question 90:

  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 .