1. Biotic factors: These are the living components of the ecosystem. This includes all the plants, animals, fungi, bacteria, and other organisms that inhabit the ecosystem.

2. Abiotic factors: These are the non-living components of the ecosystem. These include things like sunlight, water, temperature, soil, air, and minerals.

These two parts are interconnected and rely on each other for survival. The biotic factors depend on the abiotic factors for things like food, shelter, and water. The abiotic factors are influenced by the biotic factors through processes like decomposition and photosynthesis.