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 551: During respiration, air circulates round plant tissues via the Options:
  A) lenticels
  B) stomata
  C) guard cells
  D) intercellular spaces
  Show Answer
  The correct answer is D .
• Question 552:

  Which of the following structures in the ear is responsible for transmitting sound vibrations to the auditory nerve?

  Options:
  A) Eardrum
  B) Ossicles
  C) Cochlea
  D) Auditory canal
  Show Answer
  The correct answer is C .
• Question 553: In a cell, the genres are carried by Options:
  A) nuclear membranes
  B) chromatin threads
  C) lysosomes
  D) mitochondria
  Show Answer
  The correct answer is B .
• Question 554: If a nursing mother is not producing enough milk, her hormonal system is probably deficient in Options:
  A) prolactin
  B) testosterone
  C) thyroxin
  D) insulin
  Show Answer
  The correct answer is A .
• Question 555: Which of the following groups of environmental factors are density-dependent? Options:
  A) Food, salinity, accumulation of matabolites and light
  B) Temperature, salinity predation and disease
  C) Food predation, disease and accumulation of metabolites
  D) Temperature food disease and light
  Show Answer
  The correct answer is C .
• Question 556: Which of the following features of euglena is found only in animals? Options:
  A) Paramylum granules
  B) Flagellum
  C) Pellicle
  D) Pyrenoid
  Show Answer
  The correct answer is C .
• Question 557: In rabbit the chamber of the heart that receives oxygenated blood from the lungs is the Options:
  A) left ventrictle
  B) left auricle
  C) right ventricle
  D) right auricle
  Show Answer
  The correct answer is B .
• Question 558: The intensity of competition among animals in a given area will increase with Options:
  A) an increase in the frequency of disease outbreaks
  B) an increase in population size
  C) a decrease in immigration rate
  D) an increase in the emigration rate
  Show Answer
  The correct answer is B .
• Question 559: Nastic movement is Options:
  A) response to light stimulus
  B) non-directional
  C) directional
  D) response to internal stimulus
  Show Answer
  The correct answer is B .
• Question 560: The adaptive importance of nuptial flight from termite colonies is to Options:
  A) disperse the reproductives in order to establish new colonies
  B) provide abundant food for birds and other animals during the early rains
  C) ensure cross-breeding between members of one colony and another
  D) expel the reproductives so as to provide enogh food for other members
  Show Answer
  The correct answer is A .