Mankind Rising Go to: http//www.dailymotion.com/video/x150nfz mankind-trising sh

Question

Mankind Rising Go to: http//www.dailymotion.com/video/x150nfz mankind-trising shortfilms 1. Describe what the Earth was like 4 billion years ago. 2. What compound is necessary for life to have begun on Earth 3. How did water get to Earth 4 Describe how life began according to this movie 5. Which exstod first: DNA or celst 6. What occurred 3.5 bilion years ago 7. For the next_ 8. What occurred in the DNA of these single cells to create varlation 9. Five hundred and fifty million years ago, our ancestor was 10. One human ancestor was Mylokumitngia a fsh-like organism that lved billion years, the only living things were single cells million years ago and had, and a 11. Ahout 200 million years later, Myllokurmingla gave rise to kchthyostega. It lived million years ago and breathed 12. About 5 million years later, Ichthyostege gave rise to Tiktaalik It lived million years ago and walked on 13. By 279, million years ago, our ancestor had given rise to Varanops. Describe Varanops 14. A huge volcanic eruption occurred in Stberia around million years ago. Our reptile- like ancestor survived along with the ancestors ofthe 15. Thirty million years after the eruption, our ancestor war 16. Siuty-stx million years ago, Butodon was our mammal-like ancestor. It gve birth to _1ike with- young andfod them with This caused most of the 17. Sixty five milion years ago, an asteroid hit the Earth near to die. 18. million years ago, our bug-eating ancestor was Pargatorius

Explanation / Answer

1. Four billion years ago, Earth was very small and was relatively unstable, it was subjected to frequent collision with extraterrestial object leaving its crust hot and unstable for many years, eventually over time the core and the crust stabilized over time and gave rise to atmosphere and ocens.

2. According to abiogenesis, life did arise from non living matter such as simple organic compound and the transition from non-living to living was a gradual complex process .

3. Volcanic eruptions lead to the formation of vapours. over time these vapour condensed and formed water filling the earth oceanic basins created due to the impact of extraterrestial objects.

5. Ofcourse cells, first RNA was the genetic makeup..over time DNA took its place.

6. The oldest evidence of life originated 3.5 billions years ago. It was bacteria

7. 1.5 billion years

8. Mutations

9. apes

10. 520 millions years ago. It had skull and vertebrae.

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