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Questions in biology

[Answered] In describing the double helix of DNA, Shawnese represents a "twisted ladder". At the same time, she positions her hands as if she is holding a small ladder and makes the twisting motion to demonstrate what she is describing. Shawnese's gestures serve as a(n): A. expressor B. regulator C. emblem D. adaptor E. illustrator

[Answered] Activity: How is observing done? Prepare pre-cut slices of fruits. Make sure to maintain safe eating even at home. Questions: 1. How does it taste? 2. What sense/s did you use?

[Answered] Match the following. Group A (1) Carbon dioxide (2) Oxygen (3) Water vapour (4) Microbes Group B (a) Generation of soil (b) Rain (c) Plants and food production (d) Combustion

[Answered] Which is biotic? A. wind B. iron gate C. sunlight D. leaf

[Answered] 14. Omega-3 fatty acids are abundant in: (a) Red meat (b) Dairy products (c) Fish and flaxseeds (d) Refined grains 15. What is the primary role of dietary fiber? (a) Provide quick energy (b) Aid digestion and prevent constipation (c) Build muscle tissue (d) Store vitamins 16. Calcium is crucial for: (a) Blood clotting (b) Healthy bones and teeth (c) Energy metabolism (d) Antioxidant defense 17. Which vitamin is synthesized by gut bacteria? (a) Vitamin A (b) Vitamin D (c) Vitamin K (d) Vitamin B12 18. Kwashiorkor results from deficiency in: (a) Carbohydrates (b) Proteins (c) Fats (d) Vitamins 19. Water-soluble vitamins include: (a) Vitamins A and D (b) Vitamins B and C (c) Vitamins E and K (d) Vitamins D and K 20. The glycemic index measures: (a) Fat content in food (b) Protein quality (c) Blood sugar response to carbohydrates (d) Vitamin absorption rate 21. Diversified farming refers to: (a) Monoculture (b) Single-crop dependence (c) Growing multiple crops/livestock (d) Industrial agriculture 22. Crop rotation enhances: (a) Soil depletion (b) Pest resistance (c) Soil fertility and reduces pests (d) Water usage 23. Agroforestry integrates: (a) Only crops (b) Trees, crops, and livestock (c) Only livestock (d) Aquaculture 24. A benefit of diversified diets is: (a) Higher risk of deficiencies (b) Reduced nutrient intake (c) Lower chronic disease risk (d) Increased food monotony 25. Legumes in crop systems improve soil by: (a) Depleting nitrogen (b) Fixing atmospheric nitrogen (c) Increasing salinity (d) Promoting erosion 26. Permaculture emphasizes: (a) Short-term yields (b) Mimicking natural ecosystems (c) Chemical inputs (d) Monocultures

[Answered] In a 2022 study, Nicolás M. Morato and colleagues attempted to resolve a long-standing paradox: although water is critical to most reactions that enable life, during the earliest stages of Earth's history—when most of the planet's surface was covered by oceans—the presence of water likely ______ the formation of proteins and other biomolecules that are found in all living organisms. Which choice completes the text with the most logical word or phrase? A. exploited B. imitated C. hampered D. reflected

[Answered] Do not adapt as a result of competition for resources.

[Answered] Which best describes an acquired trait? A. An acquired trait is encoded in the DNA. B. An acquired trait is passed from parent to offspring. C. An acquired trait is not affected by one's peers. D. An acquired trait is developed during one's lifetime.

[Answered] Do you agree that your actions have an impact on the environment? Why? Have you ever realized that your actions today may have lasting impacts on the environment? In what way will these affect the Earth?

[Answered] A farmer reports stunted, spindle-shaped potato plants. Lab analysis reveals circular RNA molecules without protein coats. What is the causative agent? A) Bacteria B) Virus C) Mycoplasma D) Viroid