4.1-4.6 Evolution Flashcards
What theory did Darwin and Wallace develop?
Evolution By Natural selection
What is natural selection also known as?
Survival of the Fittest
Explain Darwins theory of natural selection
.Individuals who do not have the characteristics to help them survive with a change in the environment would die out
How does the emergence of antibiotic resistant organisms support Darwins theory?
..Those with antibiotic resistance can reproduce and pass on the advantageous gene to their offspring
.This supports darwins theory as the new bacteria have been selected by the environment to have a feature advantageous to survival
What method can we use to show how old fossils are?
Carbon dating
How long ago was Ardi meant to have lived?
4.4 million years
What does Ardis humanoid features resemble?
An Ape
How long ago was Lucy estimated to live?
3.2 million years ago
How did lucy walk?
Upright, human like position
Which two archaeologists discovered fossils from 1.6 million years ago?
Louis and Mary Leakey
What did an early fossil found in the 1950s contain remnants of?
Stone tools
What is now considered to be one of the most important early human species?
Homo Habilis
How were early stone age tools created?
Smashing rocks together
What more advanced tools did the late stone age use?
Pointed arrowheads
Spears
Hooks
Give two ways we can date back fossils
.Radiometirc Carbon dating
.Stratifying rock layers