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27-11-2020
Biology

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possible question and essays for gr 12 Life Scences

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27-11-2020

Answer:

Explanation:

Possible Essays for Life Science:

1. "Explain four management strategies to improve the quality of drinking water. Uncle Two sources of water pollution and Two effect of water pollution on human health. "

2. "Eutrophication is one of most important water quality problem South Africa. Describe Eutrophication, what causes it and how it affects water quality."

3. "Describe the significance of DNA replication and meiosis and how the foetus is protected and nourished in the uterus."

4. "Describe how meiosis contribute to genetic variation and how

abnormal meiosis leaf to down syndrome and polyploidy. Also

describe advantages of polyploidy in agriculture. "

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