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 1081: A density-dependent factor that regulates the population size of organism is Options:
  A) Disease
  B) Sudden flood
  C) Drought
  D) Fire outbreak
  Show Answer
  The correct answer is A .
• Question 1082: The radicle of a bean seedling grows most rapidly in the region Options:
  A) of the root tip
  B) just above the root tip
  C) just around the root tip
  D) just below the root tip
  Show Answer
  The correct answer is B .
• Question 1083: Which of the following is true in blood transfusion? Options:
  A) person of blood group AB can donate blood only to another person of blood group AB
  B) persons of blood groups A and B can donate or receive blood from each other
  C) A person of blood group AB acn receive blood only from persons of blood group A or B
  D) A person of blood group O can donate only to a person of blood group O
  Show Answer
  The correct answer is A .
• Question 1084:

  Which of the following pairs of organisms are photosynthetic?

  Options:
  A) Amoeba and paramecium
  B) Euglena and chlamydomonas
  C) Volvox and Rhizopus
  D) Nostoc and plasmodium
  Show Answer
  The correct answer is B .
• Question 1085: Viviparity occurs mainly in the Options:
  A) mammals
  B) reptiles
  C) aves
  D) amphibians
  Show Answer
  The correct answer is A .
• Question 1086: Insect show consideration powers of water conservation. This is due to the fact that Options:
  A) The chitinous cuticle is impregnated with tanned protein
  B) Nitrogenous waste is eliminated as urea
  C) Chitin is impermeable to water
  D) The malpighian tubules are impermeable to water
  E) The curticle is covered with wax
  Show Answer
  The correct answer is C .
• Question 1087:

  Use the list of ecological constituents below to answer the question below

  1. Mango 2. Spear grass 3. Goat 4. Sheep 5. Temperature 6. Beans 7. Rock 8. Water

  The physical factors are represented by

  Options:
  A) 1, 5, 6
  B) 4, 5, 7
  C) 5, 7, 8
  D) 6, 7, 8
  Show Answer
  The correct answer is C .
• Question 1088:

  When a Spirogyra cell is immersed in a salt solution more concentrated than its cell sap,it?

  Options:
  A) remains unchanged
  B) takes tip water and burst
  C) absorbs a little water
  D) loses water and shrivels
  Show Answer
  The correct answer is D .
• Question 1089: The neck region of the tape worm, (taenia) is responsible for the Options:
  A) production of egg
  B) storage of egg
  C) formation of new segment
  D) development of the suckers
  E) fragmentaion of the body segment
  Show Answer
  The correct answer is C .
• Question 1090: Human height is an example of a feature which depends on both Options:
  A) genotype and phenotype
  B) genetic and environmental factors
  C) mother's genotype and environmental factor
  D) phenotipic and environmental factors
  Show Answer
  The correct answer is B .