Speciation

Q. Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

1. Natural selection.
2. Migration.
3. Divergent evolution.
4. Adaptive radiation.

Q. Two islands were separated from each other due to tectonic movements over a course of time. One of the islands moved towards the north pole (cold area) and other one moved towards the equator (hot area). What will happen to the rabbits living on the two islands?

1. Different rabbit species formed after a period of time
2. Rabbits on both islands will not be able to adapt and will finally die
3. Rabbits will convert to polar bears in the island that moved north
4. No speciation will take place and they will remain as such

Q. Different species occurring in different geographical area are known as

1. Allopatric
2. Sympatric
3. Sibling species
4. None of the above

Q. Which of the following is important for speciation ?

1. Seasonal isolation
2. Reproductive isolation
3. Behavioural isolation
4. Tropical isolation

Q. A gradual change, over a long period, in a form of life is called

1. Evolution
2. Revolution
3. Resolution
4. Solution