Jamb Biology Past Questions For Year 1993

Question 1

After circulation in the lungs, the blood returns to the left auricle through

jamb 1993

  • A. 1
  • B. 4
  • C. 5
  • D. 6
View Answer and Explanation

Question 2

Blood is pumped into the right ventricle by the contraction of the auricle wall through

jamb 1993

  • A. 1
  • B. 3
  • C. 5
  • D. 6
View Answer and Explanation

Question 3

Stage 3 breathes

jamb 1993

  • A. with the lungs
  • B. with the external gills
  • C. with the internal gills
  • D. through the skin
View Answer and Explanation

Question 4

Which of the following is the correct order of the developmental stages?

jamb 1993

  • A. 1->2->3->4->5
  • B. 5->1->3->2->4
  • C. 2->1->3->4->5
  • D. 5->3->2->1->4
View Answer and Explanation

Question 5

In which of the features do bryophytes differ from pteridophytes?

jamb 1993

  • A. Absence of flower
  • B. Alternation of generation
  • C. Dependency on water for reproduction
  • D. Presence of vascular system
View Answer and Explanation