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 811: The process of soil erosion is usually from Options:
  A) rill → sheet → gully
  B) gully → rill → sheet
  C) sheet → guly → rill
  D) sheet → rill → gully
  E) rill → gully → sheet
  Show Answer
  The correct answer is D .
• Question 812:

  In Nigeria, Southern Guinea Savanna is found in?

  Options:
  A) Borno and Sokoto
  B) Kogi and Kwara
  C) Kaduna and Cross River
  D) Kano and Niger
  Show Answer
  The correct answer is B .
• Question 813: The transfer of pollen grains from the anther to a sigma is Options:
  A) propagation
  B) placentation
  C) pollination
  D) fertilization
  Show Answer
  The correct answer is C .
• Question 814: A sex-linked character cannot be passed on directly from Options:
  A) father to son
  B) mother to daughter
  C) mother to son
  D) father to daughter
  Show Answer
  The correct answer is A .
• Question 815: The group of insects that have mouth parts adapted for both piercing and sucking is Options:
  A) cockroach, aphids and mosquitoes
  B) aphids, houseflies and moths
  C) mosquitoes, tse-tse flies and aphids
  D) aphids, beetles and grasshoppers
  Show Answer
  The correct answer is C .
• Question 816: Dead plants and animals are decomposed by bacteria and fungi into Options:
  A) nitrate
  B) nitrites
  C) amino acids
  D) ammonia
  Show Answer
  The correct answer is D .
• Question 817:

  One of the following is an effect of clay soil on vegetation

  Options:
  A) Supports luxuriant vegetation such as forest
  B) Supports scanty vegetation
  C) Does not support light vegetation
  D) Support arid vegetation
  Show Answer
  The correct answer is A .
• Question 818: The bright coloured eye spots on the wings of moth are an example of Options:
  A) warning colouration
  B) disruptive colouration
  C) crypsis
  D) mimicry
  Show Answer
  The correct answer is D .
• Question 819: If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is Options:
  A) $\frac{1}{2}$
  B) $\frac{3}{4}$
  C) $\frac{1}{4}$
  D) 1
  Show Answer
  The correct answer is C .
• Question 820: Which of the following is the common to the mosquito, housefly and blackfly? Options:
  A) they undergo complete metamorphosis
  B) they are parasites of man
  C) their immature stages are aquatic
  D) their adults have two pairs of wings
  Show Answer
  The correct answer is A .