Changes in population occur over time through
a) artificial selection
b) speciation
c) natural selection
d) all of these
Natural selection is mechanism of……………..
a) Hybridizition
b) mutation
c) evolution
d) reproduction
In how many ways natural selection work
a) one
b) two
c) five
d) four
Explanation: Natural selection work in four following way which is Overproduction, competition, reproduction and speciation
Pesticides resistance in insects species is the example of………….
a) mutation
b) variation
c) natural selection
d) artificial selection
Breeds in plants is the example of…………….
a) natural selection
b) speciation
c) artificial selection
d) none of these
Rice, wheat, maize, sorghum and millet are called…………….
a) minor cereals
b) major cereals
c) cultivers
d) none of these
