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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
4341

Which of the following substances has the highest amount of energy in joules per unit weight?

  • A. Carbohydrates
  • B. Fats
  • C. Proteins
  • D. Vitamins
View Answer & Discuss (5) JAMB 2019
4342

Which of the following pairs of scientists discovered the Rhesus factor in human blood?

  • A. Hooke and Lavine
  • B. Darwin and Landsteiner
  • C. Landsteiner and Lavine
  • D. Hooke and Darwin
View Answer & Discuss (1) JAMB 2019
4343

The study of an individual organism or a single species of organism and its environment is

  • A. Autecology
  • B. Ecological concepts
  • C. Synecology
  • D. Biotic composers
View Answer & Discuss (9) JAMB 2019
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
4344

Which of the following is a nitrifying bacterium?

  • A. Rhizobium
  • B. Nictrobacter
  • C. Azotobacter
  • D. Pseudomonas
View Answer & Discuss (5) JAMB 2019
4345

Which of the following is the effect of using artificial pollination in plant breeding?

  • A. Production of healthy crops
  • B. Lengthening the maturity time of crops
  • C. Making crops susceptible to disease
  • D. Improvement of the variety of crops
View Answer & Discuss (5) JAMB 2019
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts