Jamb Biology 2021 Past Questions and Answers

Question 1:

• JAMB 2021

The most abundant group of organisms in the animal kingdom?

A. Mammalia
B. Aves
C. Insecta
D. Annelida

Question 2:

• JAMB 2021

The movement of part of a plant in response to external stimulus of no particular direction is?

A. Taxism
B. Tropism
C. Haptotropic movement
D. Nastic movement

Question 3:

• JAMB 2021

The mutation theory of organic evolution was propounded by?

A. Gregor Mendel
B. Hugo de Vries
C. Jean Lamarck
D. Charles Darwin

Question 4:

• JAMB 2021

If both parents are heterozygous for a trait. the probability that an offspring will be recessive for that trait is?

A. 1/2
B. 1/4
C. 1
D. 3/4

Question 5:

• JAMB 2021

Blood circulation in a mammal is said to be double because?

A. It passes twice through the heart in a complete circuit
B. It moves in both arteries and veins
C. It circulates in both the heart and other organs
D. The heart contains auricles and ventricles