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 1341: The characters by which an organism is recognized are termed its Options:
  A) phenotype
  B) genotype
  C) morphology
  D) anatomy
  E) physiology
  Show Answer
  The correct answer is A .
• Question 1342:

  Use the diagram to answer the question.

  The structure labelled i is

  Options:
  A) photosensitive
  B) radiosensitive
  C) chemoreceptive
  D) tactile
  Show Answer
  The correct answer is D .
• Question 1343: Flame cells are the Options:
  A) excretory system of worms
  B) excretory and respiratory systems of flatworms
  C) secretory syustem of flatworms
  D) excretory system of flatworms
  Show Answer
  The correct answer is D .
• Question 1344:

  

  The part of the plant where photosynthesis is least likely to take place is

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is D .
• Question 1345:

  Which of the following statements is true regarding sex-linked traits?

  Options:
  A) Sex-linked traits are located on the sex chromosomes
  B) Sex-linked traits are inherited only from the mother
  C) Sex-linked traits are more commonly observed in females
  D) Sex-linked traits are not influenced by hormonal factors
  Show Answer
  The correct answer is A .
• Question 1346: Which of the following characterizes the white mangrove? Options:
  A) Prop roots
  B) Buttress roots
  C) Breathing roots
  D) Stilt roots
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  The correct answer is C .
• Question 1347: Which of the following has the greatest influence on the distribution of animals in marine and fresh water habitats? Options:
  A) pH
  B) Salinity
  C) Water current
  D) Turbidity
  Show Answer
  The correct answer is A .
• Question 1348: Epiphytes growing on the branches of trees provide an example of the relationship known as Options:
  A) parasitism
  B) commensalism
  C) saprophytism
  D) holophytism
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  The correct answer is B .
• Question 1349: I. High birth rate and high immigration rate II. Low birth rate and high immigration rate II. Low mortality rate and low emigration IV. High mortality rate and high emigration rate. Which combination of the above can cause rapid over-crowding in climax biotic communities and human settlements? Options:
  A) II and III
  B) I and III
  C) I and IV
  D) I and II
  Show Answer
  The correct answer is B .
• Question 1350: In a population study using the transect method, a student is likely to record the highest number of species in Options:
  A) a tropical rain forest
  B) a guinea savanna
  C) a sahel savanna
  D) an estuarine swamp
  Show Answer
  The correct answer is A .