Evolution is 

1. progressive development of a race

2. history and development of race along with variations

3. history of race

4. development of race

Which of the following organisms alive today is likely to be most similar to the first life forms that evolved on the earth?

1. Methane producing bacteria

2. Cyanobacteria

3. Unicellular algae

4. Diatoms

The slow process by which new types of organism arise from existing forms by genetic

variation is called

1. Hybridisation

2. Mutation

3. Evolution

4. Transformation

In the story of this world, evolution is a …... and in the story of life on Earth, evolution is……

1. Process, result of environmental changes

2. Result of environmental changes, process

3. Process, result of natural selection

4. Result of natural selection, process