Which of the following best describes a biotic factor within an ecosystem?

• A. A physical process, such as erosion or weathering
• B. A living component, such as plants or animals
• C. A non-living component, such as sunlight or water
• D. A chemical element, such as nitrogen or phosphorus

Answer: (B)

Verified step by step guidance

1. Understand the term 'biotic factor': Biotic factors refer to the living components within an ecosystem, such as plants, animals, fungi, and microorganisms. These factors interact with each other and with abiotic (non-living) factors to shape the ecosystem.
2. Differentiate between biotic and abiotic factors: Abiotic factors include non-living components like sunlight, water, temperature, and soil. Biotic factors are exclusively living organisms.
3. Analyze the options provided: Evaluate each option to determine whether it describes a living or non-living component. For example, erosion and weathering are physical processes and abiotic, while sunlight and water are also abiotic factors.
4. Focus on the correct description: The correct answer should describe a living component, such as plants or animals, which are biotic factors.
5. Confirm the correct answer: Based on the analysis, the option 'A living component, such as plants or animals' best describes a biotic factor within an ecosystem.