Jamb Biology Past Questions and Answers

Question 2026:

• JAMB 2017

Which of the following factors can reduce the population of a community?

A. Immigration
B. Edaphic
C. Predation
D. Mutualism

Question 2027:

• JAMB 2017

In mosses the structure which performs the function of water absorption is the _________?

A. Root hairs
B. Rhizoids
C. Capsule
D. Hyphae

Question 2028:

• JAMB 2017

How does an enzyme affect the rate of a reaction?

A. It lowers the activation energy of the reaction, increasing the reaction rate.
B. It raises the activation energy of the reaction, decreasing the reaction rate.
C. It lowers the activation energy of the reaction, decreasing the reaction rate.
D. It raises the activation energy of the reaction, increasing the reaction rate.

Question 2029:

• JAMB 2018

A group of closely related organisms capable of interbreeding to produce the fertile offspring are known as members of a

A. Kingdom
B. Class
C. Family
D. Species

Question 2030:

• JAMB 2018

A group of closely related organisms capable of interbreeding to produce the fertile offspring are known as members of a

A. Kingdom
B. Class
C. Family
D. Species