Darwin developed a scientific theory of biological evolution that explains how modern organisms evolved over long periods of time through descent from common ancestors.

Charles Darwin was a neutralist and scientist from England. He developed one of the most important theory's of all time, evolution.

Darwin noticed that different, yet ecologically similar, animals species inhabited separated, but ecologically similar, habitats around the world.

Five year long voyage. Darwin planned to collect specimens of plants and animals

1) species vary globally
2)species vary locally
3)species vary over time

!)Long distant Glyptodont
2)giant armored animals

Lamarck suggested that organisms could change during their lifetime by selectively using or not using various parts of their bodies. He also suggested that individuals could pass these acquired traits on to their off spring, enabling species to change over time.

A molecular clock uses mutation rate in DNA to estimate the time that two species have been evolving independently.

Vestigial- inherited from ancestors but have lost much or all of their original function.

Homologous- structures that are shared by related species and have been inherited form a common ancestor

Analogous- body parts that share common functon

According to this hypothesis, speculation in Galapagos finches occurred by founding of a new population, geographic isolation changes in new populations gene pool behavioral isolation and ecological competition.

Directional- individuals at one end of the curve have higher fitness than individuals in the middle or at the other end.

Stabilizing- Individuals near the center of the curve higher fitness than individuals at either end.

Disruptive- individuals at the outer ends of the curves have higher fitness than individuals near the middle of the curve.

Process by which organisms with variations most suited to their local environment survive and leave more off-spring.

Biochemistry of all living things on earth incredibly similar molecular biology focus on structures and functions among species reveling similarity's.

Hutton and Lyell- concluded that Earth in the past and that the processes that change Earth in the past are the same process that operate in the present.

Malthus- reasoned that if the human population grew unchecked, there wouldn't be enough living space and food for everyone.

Lamarck- suggested that organisms could change during their lifetimes by selectively using or not using various parts of their body. He also suggested that individuals could pass these acquired traits on the off spring, enabling species to change over time.