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 71: Which of the following lists of organs is directly involved in nutrition? Options:
  A) Oesophagus, bronchus, stomach, pancreas and anus
  B) spleen, pharynx, duodenum, jejunum and rectum
  C) Teeth, oesophagus, ileum lungs and large intestine
  D) Salivary gland, liver, stomach, villi and colon
  Show Answer
  The correct answer is D .
• Question 72:

  The greatest influence on a stable ecosystem in nature is exerted by

  Options:
  A) man
  B) pollution
  C) animals
  D) rainfall
  Show Answer
  The correct answer is A .
• Question 73: In typical predator food chain involving secondary and tertiary consumers, the organism become progressively Options:
  A) smaller and more numerous along the food chain
  B) equal in number and size along the food chain
  C) larger and fewer along the food chain
  D) parasitized along the food chain as consumers get bigger
  Show Answer
  The correct answer is C .
• Question 74:

  Gaseous exchange in annelids is more advanced and efficient compared to flatworms because?

  Options:
  A) the cells of their epidermis have no blood capillaries
  B) they have well developed respiratory structures
  C) their cylindrical shape gives high surface area to volume ratio
  D) their surface area to volume ratio is very low
  Show Answer
  The correct answer is C .
• Question 75: Which of the following statements is NOT true of mammalian erythrocytes? Options:
  A) They have haemoglobin
  B) they appear yellow when looked at singly
  C) They are disc shaped
  D) The cell are more numerous than leucocytes
  E) They have nuclei at maturity
  Show Answer
  The correct answer is E .
• Question 76: The complex relationship between the members of a community and between the community as a whole and its physical environment is Options:
  A) Ecosystem
  B) Habitat
  C) Environment
  D) Niche
  E) Micro habitat
  Show Answer
  The correct answer is A .
• Question 77: Which of the following is the simplest living organism? Options:
  A) Paramecium
  B) Virus
  C) Amoeba
  D) Chlamydomonas
  Show Answer
  The correct answer is B .
• Question 78:

  

  Which organism in the pyramid functions as a tertiary consumer?

  Options:
  A) Algea
  B) Shark
  C) Tadpole
  D) Tilapia
  Show Answer
  The correct answer is B .
• Question 79:
  

  The structure can be found in the

  Options:
  A) Sympathetic and parasympathetic nervous systems
  B) Peripheral and central nervous system
  C) Peripheral nervous system only
  D) Central nervous system only
  Show Answer
  The correct answer is B .
• Question 80: One significant difference between roots and stem is that Options:
  A) Branch roots originate in the pericycle while stem do not
  B) Stems are always bove the ground while root are always below the ground
  C) Stems are positively geotropic while roots are negatively geotropic
  D) Stem are sometime used for storage while roots are never used
  E) Stems grow in both length and circumference while root grow only in length
  Show Answer
  The correct answer is A .