Friday, April 30, 2010

Darwin:Orgin of Species

During the 5 mya years the classic pollenpeeper bird population was cut by 10% due to a bad storm. Its habitat was destroyed by the storm, wrecking up their nests and food supply. They were constantly being preyed by other species. The present pollenpeeper bird competition for food supply is still limited and is still being preyed upon other predators.

Why you can read this- and why the chimp cant

Even though chimps and humans are so much alike, the brain cells in humans and chimps differ greatly. But the gene activity in blood and liver cells were alike in comparison. With evolution, the acceleration of human brains made changes in gene expressions.

Humans, Chimps not as closely related as thought?

For a long time scientists used DNA from humans and chimps and was closely related in genetic material. Several studies showed of how these two species could be so close in DNA. When they did a study of human and mice they werent close in percentage as a chimp. DNA proves that humans and chimps are closely related to each other, but not the gorilla. Even though they are quite compariable. Humans catch more diseases compared to the chimp.

Humans: Riddle of the Bones

1. From a song "Lucy in the sky with diamonds" shes a primate

2. Primates

3. same jaw, teeth, and braincases, upright walking

4. 3.6 million, 3.2, 3.2, 3.0

5. they are land apes, toe bones dont curve forward toward the heel

6. wide pelvic

7. chimp sized brain cavity

Humans: Orgins of humankind

1. Homo sapiens
2. Homo neanderthalensis
3. Homo heidelbergensis
4. Homo erectus
5. Homo Habilus
6. Australopithecus garhi

Survival: Microbe clock

A. In 1997 more than half of pneumococcus bacteria strains were evolving resistance or became resistant to penicillin. A search for an alternative antibiotics to treat illnesses been only marginally successful.

B. Total cells: 314,062
Mutations: 1339
Cells divide: 13,524

Change: Deep Time

1. Atomsphere forms
2. Earth's core forms
3. First living organisms evolve
4. First eukaryotic cells evolve
5. First multicellular organisms evolve
6. Ozone layer forms
7. First chordates evolve
8. First land plants evolve
9. First land animals evolve
10. First land vertebrates evolve
11. First reptiles evolve
12. Pangaea forms ( all continients were together)
13. First mammals evolve
14. First birds evolve
15. First flowering plants evolve
16. First primates evolve
17. Continents reach their present day formation
18. First apes evolve from primate lineage
19. Hominids evolve from the ape lineage ( great apes)
20. First early humans evolve from hominid lineage
21. Modern humans evolve from human lineage