Jamb Biology 2023 Past Questions and Answers

Question 56:

• JAMB 2023

What is the term used to describe the maximum number of individuals of a species that an environment can support indefinitely?

A. Ecological niche
B. Limiting factor
C. Carrying capacity
D. Density-dependent factor

Question 57:

• JAMB 2023

Which of the following statements about the heart is true?

A. The heart is responsible for the production of red blood cells
B. The heart pumps oxygenated blood to the lungs
C. The heart receives blood from the kidneys and filters waste products
D. The heart is a muscular organ that contracts to circulate blood throughout the body

Question 58:

• JAMB 2023

What is the primary source of variation in a population?

A. Gene flow
B. Mutation
C. Natural selection
D. Genetic drift

Question 59:

• JAMB 2023

Which component of blood is responsible for carrying oxygen to the body tissues?

A. Platelets
B. White blood cells
C. Red blood cells
D. Plasma

Question 60:

• JAMB 2023

What are the primary products of photosynthesis?

A. Carbon dioxide and water
B. Glucose and oxygen
C. Glucose and carbon dioxide
D. Oxygen and water