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Questions and Answers
Which of the following elements are essential to life?
Which of the following elements are essential to life?
- Phosphorus, Sulfur, Magnesium, Chlorine
- Boron, Zinc, Selenium, Fluorine
- Hydrogen, Oxygen, Nitrogen, Carbon (correct)
- Calcium, Iron, Sodium, Potassium
What are the advantages of carbon as a basis for living systems?
What are the advantages of carbon as a basis for living systems?
- Carbon can form stable covalent bonds with other elements (correct)
- Carbon is abundant in the universe
- Carbon is highly reactive
- Carbon can exist in a variety of oxidation states
Why is silicon not a good substitute for carbon in living systems?
Why is silicon not a good substitute for carbon in living systems?
- Silicon is highly reactive
- Silicon cannot form covalent bonds
- Silicon forms less stable bonds compared to carbon (correct)
- Silicon is less abundant in the universe
What are the differences between prokaryotic and eukaryotic cells?
What are the differences between prokaryotic and eukaryotic cells?
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What are the building blocks of biomolecules?
What are the building blocks of biomolecules?
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