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 151:

  

  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 152: What proportion of the offspring of a cross between two heterozygous parents will exhibit the recessive condition phenotypically Options:
  A) 1/4
  B) 1/2
  C) 3/4
  D) 4/4
  Show Answer
  The correct answer is A .
• Question 153: Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because Options:
  A) the deposits have remains of organisms characteristic of when they were formed
  B) different strata have remains of organisms of the same kind
  C) only organisms with strong parts are fossilized
  D) most animal and plant fossils bear little resemblance to present day living specimens
  Show Answer
  The correct answer is A .
• Question 154: Magnesium is utilized in the formation of Options:
  A) ATP
  B) Glucose
  C) Amino acids
  D) Chlorophyll
  E) Fats
  Show Answer
  The correct answer is D .
• Question 155: A green plant growing in a compost pit is feeding Options:
  A) holozoically
  B) parasitically
  C) saprophytically
  D) holophytically
  E) in none of the above ways
  Show Answer
  The correct answer is D .
• Question 156: An organism having one pair of identical genes is Options:
  A) a heterozygote
  B) a hybride
  C) an allelomorph
  D) a homozygote
  E) a diploid
  Show Answer
  The correct answer is D .
• Question 157: Some of the major elements required by plants are Options:
  A) Potassium, nitrogen, phosphorus, sodium, calcium
  B) Nitrogen, phosphorus, molybdenum, sodium, calcium
  C) Potassium, phosphorus, molybdenum, sodium, calcium
  D) Potassium, nitrogen, iron , sodium, calcium
  E) Potassium, nitrogen, phosphorus, silicon, cadmium
  Show Answer
  The correct answer is A .
• Question 158: In the diagram, the function of the part labelled is to Options:
  A) produce egg cells
  B) protect sperms during fertilization
  C) secrete hormones during coitus
  D) protect the developing embryo
  Show Answer
  The correct answer is A .
• Question 159: Which of the following hormones is produced during fright or when agitated? Options:
  A) Insulin
  B) Adrenalin
  C) Thyroxine
  D) Pituitrin
  E) Progesterone
  Show Answer
  The correct answer is B .
• Question 160: A collection of population of all living organisms that exist in a habitat is referred to as Options:
  A) niche
  B) ecosystem
  C) community
  D) environment
  Show Answer
  The correct answer is C .