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D.3 Lecture Notes

Distinguish between genetic and cultural evolution. Discuss the relative importance of genetic and cultural evolution in the recent evolution of humans.

Version of an element with a different number of neutrons from the usual version of the same element. Isotopes that release some of their subatomic particles to reach stability.

Accuracy of Fossils and Dating Methods

Radiation is not harmful to us but can be measured in the lab. What is the approximate age? Half-life is the amount of time it takes for half of the radioactive isotopes in a substance to decay.

D.3 Human Evolution

Grasp objects very important for climbing. Fine motor skills to manipulate objects Paw.

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Primates lack claws making climbing easier. Increased range of motion Freedom of movement is impossible in other animals. Allows for stereoscopic vision 3D. The major anatomical features that define humans as primates include: Outline a method for dating rocks and fossils using radioisotopes, with reference to 14 C and 40 K Fossils, or.

The History of Life. Exponential Growth and Decay 6. The only difference in the model is that. Deduce the approximate age of materials based on a simple decay curve for a radioisotope. Outline the trends illustrated by the fossils of Ardipithecus ramidus , Australopithecus , including A.

D.3.5 Outline the trends illustrated by the fossils of

State that, at various stages in hominid evolution, several species may have coexisted. Discuss the incompleteness of the fossil record and the resulting uncertainties with respect to human evolution. Discuss the the correlation between the change in diet and increase in brain size during hominid evolution. Distinguish between genetic and cultural evolution.

Human Evolution