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Update Unit_3_Biology_Study_Sheet.md

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Grade 9/Science/SNC1DZ/Unit_3_Biology_Study_Sheet.md
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@ -493,4 +493,33 @@ efficiency varies from `5%` to `20%` energy available between successive trophic
- DDT can be passed through organisms, from generation to generation, as the food we eat contains small amounts of DDT, and thus, the cycles continues. It doesn't matter how many generations ahead you are, everyone in the world contains some amount of DDT in their bodies.
- Pesticide resistance?
## Article Questions
1. Explain the **three** components of biological diversity?
- Genetic diversity
- Ecological diversity
- Species diversity
2. Why is this considered to be the plants most valuable resource? List 5 examples
- Provide us with wood, food, medicines, raw materials + fibers
3. Why has the extinction rate increasedi in the last 10,000 years? List 3 reasons
- Beause we ruin organisms habitats, eg. destruction + deforestation of wetands + coroal reefs.
4. Explain why the reduction in diversity cannot be fixed through genetic engineering
- Since genetic engineering depends on natural biodiversity for its raw material, you cannot rereate a certain species without the species exisiting itself.
1. Achim Steiner, Explain the tragedy is he referring to?
- The tragedy of climate change being related to biodiversity
2. What are human health systems throughout history all based on?
- Animals -frogs, amphibians, bears, cone snails, non-human primates, horseshoe crabs, etc.
3. Describe **three** organisms and their potential contribution to pharmaceutial science
- Pananina poison frog, makes pumilations that can help heart disease
- Ecuadorian poson frog, source 4 painkillers
- Cone snails; compound in clinical trails 4 advanced cancer + AID painkillers
4. What are the basic needs that must be perserved "at all cost"? List 5.
- Clean air, clean water, clean soil, clean energy from sun, and biodiversity.
1. Why was palm oil deemed an attractive biofuel? List 4 reasons.
- Cheap, renewable ,alternative to petroleum, fights global warming, carbo-neutral , abudant, requires few-no modifications.
2. How was the production of palm oil proved it to be a failure as a biofuel? Describe 2 reasons.
- Plantations on drained peat bags, where CO<sup>2</sup> seeps into the air (600 million /tonnes/ year)
- Smoke from fires to clear rainforests for plantations (1.4 billion tonnes /year)
3. Has the knowledge of the damaging effects of palm oil production made an impact on overall production? Explain your reasoning.
- Yes and no; more companis are backing out due to lack of sustainability but other /more companies are joining in because of the great way to make profit.