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 2081:

  

  Blood is pumped into the right ventricle by the contraction of the auricle wall through

  Options:
  A) 1
  B) 3
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 2082: The probability of a baby being a boy or a girl depends on the contribution of the Options:
  A) father's sex cell
  B) father's somatic chromosome
  C) mother's sex cell
  D) mother's X-chromosome
  Show Answer
  The correct answer is A .
• Question 2083:

  

  The type of placentation shown is

  Options:
  A) axial
  B) marginal
  C) parietal
  D) central
  Show Answer
  The correct answer is B .
• Question 2084: The male cockroach differs from the female by having Options:
  A) mandibles
  B) a pair of style
  C) spiracles
  D) a pair of cerci
  Show Answer
  The correct answer is B .
• Question 2085: During ovulation, an egg is released from the Options:
  A) corpus luteum
  B) ovarian funnel
  C) graafian follicle
  D) fallopian tube
  Show Answer
  The correct answer is C .
• Question 2086:

  

  The structure labelled II is known as

  Options:
  A) sweat gland
  B) lymph vessel
  C) blood vessel
  D) nerve ending
  Show Answer
  The correct answer is B .
• Question 2087:

  Which of the following is true in blood transfusion?

  Options:
  A) A person of blood group AB can donate blood only to another person of blood group AB
  B) Persons of blood groups A and B can donate or receive blood from each other
  C) A person of blood group AB can receive blood only from persons of blood group A or B
  D) A person of blood group O can donate only to a person of blood group O
  Show Answer
  The correct answer is A .
• Question 2088: Which of the following is true of the transverse section of a dicot system? Options:
  A) the xylem is more interiory located than the phleom
  B) the cambium lies between the cortex and the vascular bundles
  C) the vascular bundles are randomly scattered within the cortex
  D) the epidemis is completely encircled by the cortex
  Show Answer
  The correct answer is A .
• Question 2089: The theory of natural selection was postulated by Options:
  A) Gregor Mendel
  B) Matthias Schleiden
  C) Charles Darwin
  D) Robert Hook
  Show Answer
  The correct answer is C .
• Question 2090: The bright colours of the comb and feathers in the peacock are for Options:
  A) sex differenciation
  B) beauty
  C) courtship
  D) defence
  Show Answer
  The correct answer is C .