ORIGIN AND EVOLUTION OF LIFE

Gap-fill exercise

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1.The universe comprised of stars, clouds of gas and dust which form the .
2.It was speculated by (1862) that life originates from preexisting life.
3. tha units of life called .
4. The organs look similar and perform similar functions.
5. Lamarck’s theory of evolution was published in ‘’ .
6. The theory of natural selection for evolution was proposed by .
7.Fossils are most commonly preserved in .
8. The forelimbs of bat and human are examples of organs.
9. are produced in germ cells of an organism.
10.The major concept in is the habitable zone