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 311: The one-seeded fuit in which the pericarp and the seed coat have become fused together is known as Options:
  A) achene
  B) samara
  C) caryopsis
  D) legume
  E) drupe
  Show Answer
  The correct answer is C .
• Question 312: Which of the following is TRUE of the process of conjugation in paramecium? Options:
  A) Micronucleus disintegrates
  B) Each ex-conjugant divides only once
  C) Macronucleus undergoes division
  D) Each micronucleus divides twice
  Show Answer
  The correct answer is D .
• Question 313:

  

  What is the part marked X in the figure above called?

  Options:
  A) Pulmonary artery
  B) Pulmonary vein
  C) Vena cava
  D) Main aorta
  E) Hepatic artery
  Show Answer
  The correct answer is A .
• Question 314: Which of the following diseases can be contracted in areas with fast flowing rivers? Options:
  A) Schistosomiasis
  B) Elephantiasis
  C) Syphilis
  D) Onchoceriasis
  Show Answer
  The correct answer is D .
• Question 315: Fruit enlargement can be induced by spraying young ovary with Options:
  A) cytokinin, abscisic acid and ethylene
  B) gibberellin, ethylene and abscisic acid
  C) auxin, abscisic acid and ethylene
  D) auxin, cytokinin and gibberellin
  Show Answer
  The correct answer is D .
• Question 316: The carrying capacity of a habitat is reached when the population growth begins to Options:
  A) increase slowly
  B) increase exponentially
  C) slow down
  D) remain steady
  Show Answer
  The correct answer is D .
• Question 317:

  

  Using the diagram, the part labelled IV is for

  Options:
  A) excretion
  B) nourishment
  C) protection
  D) respiration
  Show Answer
  The correct answer is C .
• Question 318: The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles and which is an evidence of their common ancestry is the Options:
  A) eye
  B) chorion
  C) allantois
  D) gill-silts
  Show Answer
  The correct answer is D .
• Question 319: In fresh water marshes and swamps, the most important abiotic factors that organisms have to adapt to is Options:
  A) nature of substratum
  B) high salinity
  C) high temperature
  D) low pH
  Show Answer
  The correct answer is A .
• Question 320: The Rhesus factor of blood was first identified in a category of Options:
  A) monkeys
  B) human females
  C) human males
  D) chimpanzees
  Show Answer
  The correct answer is A .