Question

1. put in order: organism → population → community → biosphere
2. explain the difference between biotic and abiotic factors
3. define niche and habitat. how do they differ?

Explanation:

• Organism: A single living entity.
• Population: A group of the same organisms.
• Community: Different populations interacting.
• Ecosystem: Community + abiotic factors.
• Biosphere: All ecosystems on Earth.
• Biotic factors: Living parts (e.g., plants, animals).
• Abiotic factors: Non - living parts (e.g., sunlight, water).
• Niche: An organism's role and interactions.
• Habitat: Where an organism lives.

Answer:

1. Organism → Population → Community → Ecosystem → Biosphere
2. Biotic factors are living (e.g., plants), abiotic are non - living (e.g., soil).
3. Niche: role; Habitat: living place.