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History Hon. 100

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Age of the oldest multicelled life form
750 million years old
Age of the oldest single cell life form
3 and one half billion years old
How did the first life reproduce
The first life reproduced by asexual reproduction
How many cells do humans have
Over a quadrillion cells
How old is the earth
5 billion years old
How old is the universe
13 to 25 billion years old
List life in order
Single celled Multi celled marine invertabrates Fish Marine vertebrtaes Amphibian Reptile Birds Mammmals
Micro fossils
Remains of microscopic single celled life(GREEN AND BLUE ALGEA)
What are all forms of life when they are first concieved
All forms of life are female before they develope into males.
What are the charecteristics of mammals
Social Breast feed warm blooded adaptable
What are the three eras of multicelled evolution
Peleozoic Mesozoic cenozoic
What causes changes in life form
Chenges in the enviornment
What family made famous discoveries in history
The leakey family
What is the difference between Monkeys and apes
Monkeys have tails and apes do not
What percentage of life forms have become extint since the beginning of time
90%
When were the earliest humans discovered
four to four and a half million years ago.
Where do our emotions come from
Most of human emotions come from reptiles
Why are fish important to the evolution of humans
Fish established a backbone. They also came up with the male and female charectersitics.

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