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Summary Grade 12 Life Sciences Notes - Evolution (IEB) $10.22   Add to cart

Summary

Summary Grade 12 Life Sciences Notes - Evolution (IEB)

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This document is the notes needed for Grade 12 Life Sciences - Evolution (IEB) in entirety. It contains all the necessary information as according to the SAGS document. It contains examples, diagrams and explanations. It also includes flashcards to aid studying.

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  • September 19, 2023
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Available practice questions

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Some examples from this set of practice questions

1.

The San

Answer: - The world\'s oldest extant population. - Have the greatest genetic diversity and are likely the source from which all populations of humans descended from.

2.

Where has evidence of Homo spaiens been found in South Africa?

Answer: - Border Cave, KZN - Remains of an infant were found in a grace which indicates burial & symbolism. - Klasies River mouth - Anatomically modern humans found. - Blombos Cave - First evidence of symbolism, cognitive thinking & technological advancements. - Pinnacle Point- Exploitation of marine life for food which shows use of technology & symbolism. - Eve\'s Footprints - Found in Langebaan.

3.

Homo neanderthalensis

Answer: - 40 000 - 400 000 years ago - Found in Europe & Asia where they were outcompeted or interbred with Homo sapiens. - Features: - Short & robust with large noses (adapted to the climate) - Longer cranium, large occipital bun (less speech development. - Thicker & pronounced brow ridges & no chin. - Good hunters that worked in groups. - Had tools & used fire - Buried their death

4.

Homo naledi

Answer: - 236 000 - 335 000 years ago - Found in the Rising Star Caves, SA by Lee Berger (possible burial site) - Features: - Unusually primitive for such a young species - Bipedal - Brain has a similar structure to modern humans (relatively primitive though) - Small teeth

5.

Homo erectus

Answer: - 300 000 - 2 000 000 years ago - Examples: - Turkana Boy is the most complete H. erectus & was found at Lake Turkana, Kenya. - Features: - Modern human proportions (bipedal) - Larger brain - Used complex tools to hunt animals - First hominid to use and control fire whih led to social behaviour, offered protection, gave a wider choice of food and allowed for migration (able to control their environment)

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