1. An organic molecules and subsequent simple life forms first originated from inorganic substances.

3. It is the belief that life originates from preexisting life.

4. A doctrine or theory holding that matter, the various forms of life, and the world were created by God out of nothing and usually in the way described in the book of Genesis in the Bible.

5. It is a superseded scientific theory that held that living creatures could arise from nonliving matter and that such processes were commonplace and regular.

6. It suggests that life existed in outer space and was transported by meteorites, asteroids, or comets to a receptive Earth.

7. It usually starts from general principles, then goes to more specific observations.

8. It relies mainly on verifiable observations and measurements.

9. This scientific reasoning is from specific to general.

10. It involves the use of scientific method, which is used as a guide by biologist in solving problems.