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 431:

  Which of the following options best describes adaptation for survival in organisms?

  Options:
  A) Adaptation is the inherited trait that increases an organism's chances of survival and reproduction in its environment
  B) Adaptation is the process by which organisms acquire new characteristics during their lifetime
  C) Adaptation refers to the ability of an organism to change its environment to better suit its needs
  D) Adaptation involves the development of new traits in response to changes in the environment
  Show Answer
  The correct answer is A .
• Question 432: Growing yam tendrils climb for support. This growth response is Options:
  A) haptotropism
  B) geotropism
  C) phototropism
  D) hydrotropism
  E) chemotropism
  Show Answer
  The correct answer is A .
• Question 433: The probability of a baby being a boy or a girl depends on the contribution of the Options:
  A) father's sex cell
  B) father's somatic chromosome
  C) mother's sex cell
  D) mother's X-chromosome
  Show Answer
  The correct answer is A .
• Question 434: Which of the following choices correctly describes the composition of the cell membrane? Options:
  A) contains only lipids
  B) contains lipids and protein
  C) contains lipids and cytosol
  D) contains only proteins
  Show Answer
  The correct answer is B .
• Question 435: Gaseous exchange in Aves occurs in the Options:
  A) tracheoles
  B) bronchi
  C) air sacs
  D) trachea
  Show Answer
  The correct answer is C .
• Question 436: Which of the following diseases can be contracted in areas with fast flowing rivers? Options:
  A) Schistosomiasis
  B) Elephantiasis
  C) Syphilis
  D) Onchoceriasis
  Show Answer
  The correct answer is D .
• Question 437: Which of the following characters is NOT sex-linked? Options:
  A) Albinism
  B) Baldness
  C) Haemophilia
  D) Colour blindness
  Show Answer
  The correct answer is A .
• Question 438: An organism which lives on the remain of dead plant is Options:
  A) An endoparasite
  B) Saprophyte
  C) Commensal
  D) Symbiont
  E) ectoparasite
  Show Answer
  The correct answer is B .
• Question 439:

  

  The correct figured sequence for the following labeled parts (stigma, ovary wall, embryo sac, integument and micropyle) is

  Options:
  A) 12453
  B) 24135
  C) 21435
  D) 14325
  E) 31425
  Show Answer
  The correct answer is C .
• Question 440: The element nitrogen is utilized in Options:
  A) Formation of ATP
  B) Formation of glucose
  C) Formation of amino acid
  D) Photosynthesis
  E) None of the above
  Show Answer
  The correct answer is C .