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 601:

  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 602: In blood transfusion, agglutination occurs when Options:
  A) white blood cells from two individuals meet
  B) two different antibodies meet
  C) two different antigens meet
  D) contrasting antigens and antibodies meet
  Show Answer
  The correct answer is D .
• Question 603: Both recessive and dominant characters are found Options:
  A) on different chromosomes in the cell
  B) at the same locus of a homologous chromosome
  C) at different loci of a homologous chromosome
  D) on the same chromatid in a chromosome
  Show Answer
  The correct answer is B .
• Question 604: The plants that grow in deserts or very dry areas are referred to as Options:
  A) mesophytes
  B) hydrophytes
  C) epiphytes
  D) xerophytes
  Show Answer
  The correct answer is D .
• Question 605: The carrier of the hereditary character in plants and animal is the Options:
  A) Cell
  B) Nucleus
  C) Chromosome
  D) Chloroplast
  E) Gene
  Show Answer
  The correct answer is C .
• Question 606: The pineapple fruit is best described as Options:
  A) aggregate, succulent and indehiscent
  B) aggregate, succulent and dehiscent
  C) multiple, succulent and indehiscent
  D) multiple, succulent and dehiscent
  Show Answer
  The correct answer is C .
• Question 607: Countershading is an adaptive feature that enables animals to Options:
  A) fight enemies
  B) remain undetected
  C) warn enemies
  D) attract mates
  Show Answer
  The correct answer is B .
• Question 608: Nastic movement is Options:
  A) response to light stimulus
  B) non-directional
  C) directional
  D) response to internal stimulus
  Show Answer
  The correct answer is B .
• Question 609:

  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 610: Double fertilization is a unique feature of Options:
  A) angiosperms
  B) bryophytes
  C) pteridophytes
  D) algae
  Show Answer
  The correct answer is A .