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Evolution/Human Family Tree (Natural Selection download-1 (Natrual…
Evolution/Human Family Tree
Natural Selection
Natrual selctoion explains how life started
Chares Darwin that all living thing have a common ancestor
In a family there are differences
Organisms that fit there environment the best will survive and reproduce
natural selection is the same as survival of fittest
Natural Selection causes evolution
Human Evolution
humans and apes share a common ancestor
palentiotologist found fossils of past humans
Humans are primates
the oldest fossil was found in Affrica
modern humans are homo sapiens
Humans adapted to have larger brains use tools and create communities
Charles Darwin
on the island he observed different animals different locations
he disagrees with other scientist, because he believed evolution takes a long time
he traveled and learned about many plants and animals to observe there differences
Charles Darwin came up with the Theory Evolution
he wrote a book called the Origin of species
the theory of evolution is supported by a lot of evidence including genetics and heredity
fossils
a fossil body is apart of a living thing
there are different types cast mold cast
not everything becomes a fossil
over million of year plants decomposed into fossil fuels
fossil is the remain of a once living thing
Flu and Flu Vaccine
Spanish flu killed a number of people
Vaccines are used to fight of viruses
The flu virus can cause symptoms such as a fever
There are different strains (Version) off the virus
Flu is caused by a virus
Virus can mutate and evlove
Extinction
99% of all living things have gone extinct
Climate change can lead to the extinction
Extinction is when the whole species dies out
Eveloution pressuers can also lead to extinction
65 million years ago all dinosaurs went extinct
Human activity affect the environment which can cause the exct
