Growth of Organisms

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What is an environmental factor in the growth of organisms?

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An environmental factor is a condition or element in the environment that affects the growth and development of organisms, such as soil type, water availability, and light exposure.

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What is a genetic factor in the growth of organisms?

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A genetic factor refers to the inherited traits and characteristics that influence the growth and development of an organism, such as height, color, and resistance to diseases.

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Define phototropism.

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Phototropism is the growth movement of a plant in response to light, where plants grow towards the light source.

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What are the three essential conditions for optimal growth of organisms?

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Nutrients, water, and sunlight are essential for the optimal growth of organisms.

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How do roots of trees competing for water illustrate an environmental factor?

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Roots competing for water demonstrate an environmental factor because the availability of water in the soil affects the growth and survival of the trees.

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What role does sunlight play in the growth of plants?

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Sunlight is crucial for photosynthesis, the process by which plants convert light energy into chemical energy, enabling growth.

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What is the significance of soil pH in plant growth?

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Soil pH affects nutrient availability and microbial activity in the soil, influencing plant growth and health.

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Explain the term 'nutrients' in the context of organism growth.

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Nutrients are substances that provide essential elements for growth, such as nitrogen, phosphorus, and potassium, which are vital for plant development.

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What is the impact of water on plant growth?

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Water is essential for photosynthesis, nutrient transport, and maintaining cell structure, directly influencing plant growth.

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How does genetic variation affect plant populations?

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Genetic variation within plant populations can lead to differences in traits such as height, disease resistance, and adaptability to environmental changes.

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