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 861:

  

  The endoplasmic reticulum is represented by the part labelled

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is D .
• Question 862:

  An adaptation for defense in animals is?

  Options:
  A) croaking of a male toad
  B) basking in lizard
  C) spines in porcupine fish
  D) huddling together of penguins
  Show Answer
  The correct answer is C .
• Question 863: The growth of a coleoptile towards unilateral light source is due to Options:
  A) rapid rate of photosynthesis
  B) unequal distribution of auxin
  C) the effect of geotropism
  D) the effect of photolysis
  Show Answer
  The correct answer is B .
• Question 864:

  The alternate form of a gene is

  Options:
  A) Alternate type
  B) Dominant character
  C) Recessive character
  D) Allele
  Show Answer
  The correct answer is D .
• Question 865: Which of the following is a major cause of variation among organisms? Options:
  A) Inbreeding
  B) Backcrossing
  C) Sexual reproduction
  D) Gene dominance
  Show Answer
  The correct answer is D .
• Question 866: An onion is a bulb because it Options:
  A) has a tuberous stem
  B) has a reduced stem and thick fleshy leaves
  C) has adventitous roots
  D) bears many buds at the nodes
  Show Answer
  The correct answer is B .
• Question 867:

  Which of the following is a male reproductive organ in humans?

  Options:
  A) Uterus
  B) Ovary
  C) Testis
  D) Fallopian tube
  Show Answer
  The correct answer is C .
• Question 868: Choose the sequence which represents the correct order of organisms in a food chain. Options:
  A) Grass, snake, toad, grasshopper, hawk
  B) Grass, grasshopper, toad, snake, hawk
  C) Grass, grasshopper, snake, toad, hawk
  D) Grass, snake, grasshopper, toad, hawk
  E) Grass, toad, snake, grasshopper, hawk
  Show Answer
  The correct answer is B .
• Question 869: What organelle is the site of photosynthesis in plants? Options:
  A) Chloroplasts
  B) Ribosomes
  C) Cytoplasm
  D) Mitochondria
  Show Answer
  The correct answer is A .
• Question 870: 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 .