Question

1.      Which of the following statement is true about the different mechanism of evolution?

A.     Natural selection works by selecting alleles that confer beneficial traits or behaviour.

B.     Mutations introduce new alleles into a population.

C.     Allele frequencies can change as a result of gene flow

D.     All of the above

2.      Which organism first dominated the earth?

A.     Dinosaurs

B.     Fishes

C.     Plants

D.     Bacteria

Answer 1

1) D,

2)D