Evolutionary relationships can be seen by looking at a...
evolutionary tree diagram
Give 3 reasons why people did not accept Charles Darwin's idea of Natural Selection.
- It went against religious beliefs (life not made by God)
- Darwin did not know about DNA and how genes were passed on.
- There wasn;t much evidence to convince scientists.
Who came up with the idea of natural selection?
What evidence is there to support evolution?
Fossils show that organisms change over time.
What is evolution?
When organisms change over millions of years.
What are the 3 main groups that we can classify organisms into?
What do we call the type of diagram shown?
An evolutionary tree diagram
What is a random mutation?
A change in an organism's DNA
What is classification?
When we put organisms into groups e.g. animals, plants, microorganisms.
Evolution happens because of a process called...
Who is more closely related to Gorillas: Chimpanzees or Organutans?
They are equally related.
Which organisms have the best chance of surviving in an environment?
Organisms with the best adaptations e.g. long neck, trunk etc.
Explain how evolution of a characteristic occurs due to natural selection.
Random Mutation (Red Monkeys)
Who had a different idea about how evolution happened?
Jean Baptiste Lamarck
How did Larmarck think evolution happened?
He said that if characteristics were used a lot then it would become more developed e.g. when a giraffe stretches it neck it gets longer. This would then be passed on to its offspring.
Who is more closely related to orangutans: Humans or Gorillas?
How are fossils formed?
An animal dies
Mud and sand bury them
After millions of years an imprint is left in the rock (a fossil)
How can animals go extinct?
Competion from other animals