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 981: The physical and climatic factors of a region primarily determine the Options:
  A) kinds of animal inhabiting the area
  B) types of plants found in the area
  C) nature of the soil in that region
  D) community of organisms in the region
  Show Answer
  The correct answer is D .
• Question 982: In lower plants like mosses, the structure which performs the functions of roots of higher plants is called Options:
  A) root hairs
  B) rootlets
  C) hypae
  D) rhizoids
  E) thalli
  Show Answer
  The correct answer is D .
• Question 983:

  

  Use the diagram above to answer this question.

  The process illustrated is

  Options:
  A) gametogenesis
  B) sporulation
  C) sexual reproduction in Spirogyra
  D) sexual reproduction in Rhizopus
  Show Answer
  The correct answer is D .
• Question 984:

  

  In the diagram, the variation illustration is

  Options:
  A) discontinuous
  B) morphological
  C) physiological
  D) biochemical
  Show Answer
  The correct answer is B .
• Question 985: Parenchyma cells are serves as supporting tissue when they Options:
  A) contain chloroplast
  B) have crystals
  C) become flaccid
  D) become turgid
  Show Answer
  The correct answer is D .
• Question 986:

  An example of a radially symmetrical organisms is

  Options:
  A) Planaria
  B) Hydra
  C) Tapeworm
  D) Roundworm
  Show Answer
  The correct answer is B .
• Question 987: One reason for the success of Mendel's work is that the Options:
  A) was the first to carry out research work on modern genetics
  B) introduced quantitative and qualitative elements into his work
  C) selected two characteristics only at a time for study
  D) drew up his laws of inheritance based on his knowledge of chromosomes
  Show Answer
  The correct answer is D .
• Question 988: Which of the following factors is LEAST likely to affect the animals living in a fresh water habitat? Options:
  A) Turbidity
  B) Temperature
  C) pH
  D) Salinity
  Show Answer
  The correct answer is D .
• Question 989: Nitrifying bacteria keep the soil fertile by Options:
  A) converting nitrate to nitrogen
  B) converting ammonium salt to nitrate
  C) converting atmospheric nitrogen to plant nitrogen
  D) converting nitrate to nitrous oxide
  E) converting atmospheric nitrogen to nitrates
  Show Answer
  The correct answer is B .
• Question 990: Water retention is highest in soils which are rich in Options:
  A) sand, poor in humus and devoid of clay
  B) clay and sand, but poor in humus
  C) clay and humus, but poor in sand
  D) clay, poor in humus and devoid of sand
  E) sand and humus, but poor in clay
  Show Answer
  The correct answer is D .