Organic Evolution

Q. Formation of a new type of organisms from pre-existing ones due to evolution is called as speciation. Which of the following could be possible reasons for such a process?

1. Natural selection
2. Speciation
3. Inheritance of characters
4. Continuous use and disuse of organs

Q. 'Descent through modification' is another usage for:

1. chemical evolution
2. organic evolution
3. inorganic evolution
4. mass extinction

Q. Organic evolution is also termed as ___.

1. descent through extraction
2. descent through modification
3. descent through accidents
4. descent through evolution

Q. Choose the correct pairs.

1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 

Q. The gradual process in which organisms develop more complex body designs and change in characteristics through inheritable changes in DNA over generations is called ___________.

1. natural variation
2. evolution
3. speciation
4. heredity

Q. The big bang theory was proposed by Georges Lemaître.

1. True
2. False

Q. Statement 1: Diversity in living organisms arises due to evolution

Statement 2: Human beings are not the ultimate species in the course of evolution.

1. Only statement 1 is correct.
2. Only statement 2 is correct.
3. Both the statements are incorrect.
4. Both the statements are correct.

Q. Evolution is a gradual change that develops a species into a less suitable form.

1. True
2. False

Q. Development of the organism through time is:

1. evolution
2. cloning
3. inheritance
4. organisation

Q. A baby has been born with a small tail. It is the case exhibiting

1. retrogressive evolution
2. metamorphosis
3. atavism
4. mutation