Presentation is loading. Please wait.

Presentation is loading. Please wait.

Origins of Life Evolution

Similar presentations


Presentation on theme: "Origins of Life Evolution"— Presentation transcript:

1 Origins of Life Evolution

2 Evolution Gradual development… simple to complex BIOLOGICALLY SPEAKING
Descent with modification Changes in frequency from population to population Different species from common ancestors

3 Chemical Evolution The formation of complex organic molecules
from simpler inorganic molecules  chemical reactions in the oceans during the early history of the Earth first step in the development of life on this planet. period of chemical evolution lasted less than a billion years.

4 Organic Evolution Organic evolution involves modifications to existing species not the development of new ones.  life descended from other life

5 Miller - Urey Experiment

6

7

8

9

10

11

12 Spontaneous Generation

13 Redi

14

15 Needham

16

17 Spallanzani

18

19 Pasteur

20

21

22 Survival of the fittest

23 Natural Selection

24

25 Malthus

26 Wallace

27 Lyell

28 Influences on Darwin

29 Lamarck

30


Download ppt "Origins of Life Evolution"

Similar presentations


Ads by Google