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Chapter 29: Evolution

________________________ - A trait that makes a living thing able to survive its surroundings

Example: _________________ & _______________ mice cohabitate on dark soil. ______________ mice are eaten more often than ___________ mice.

What would happen if a chemical change occurred and the soil became lighter?

_______________________________________ - A process in which something in a living thing’s surroundings determine if it will or will not survive to have offspring.

If living things ARE suited to their surroundings:

If living things ARE NOT suited to their surroundings:

_____________________ are controlled by _____________.

Many new traits come from ___________________, or changes in DNA.

__________________ are ___________________________ for survival (albino deer are more often eaten by predators)

What if a deer had a mutation that gave it extra long legs?

How new species are formed:

Example: ___________________________________________

Finches from South America flew into Galapagos Islands -> Finches spread out over the islands & didn’t come into contact with each other for a long time.

What happened?

Charles Darwin sailed around the world collecting live specimens. He wrote a book explaining evolution & his theory of Natural Selection.

Main Points of Charles Darwin’s “Origin of Species”

_____________________________ - A change in hereditary features of a group of organisms over time.

Evidence of Evolution

1.    Fossils –

2.    Comparing Body Structures -

Homologous Structures:

Vestigial structures:

3.    Embryological Development –

4.    DNA Evidence –