Final answer:
The climate, soil type, plants, and animal factors define a biome. Climate influences the types of plants and animals in a biome, and abiotic factors interact with biotic factors to create a specific ecosystem.
Step-by-step explanation:
A biome is an area with similar climate that includes similar communities of plants and animals. Climate influences the types of plants and animals that inhabit a specific biome. For example, a hot dry biome is going to be completely different from a moderate wet biome. The soil quality will be different. Together, these will result in different plants being able to occupy each biome. Different plants will attract different animals (herbivores) to eat these plants. These animals, in turn, will attract different (carnivores) animals to eat the herbivores. So it is the abiotic factors that determine the biotic factors of an ecosystem, and together these define the biome.
The differences in the biomes are due to differences in the abiotic factors, especially climate. Climate is the typical weather in an area over a long period of time. The climate includes the amount of rainfall and the average temperature in the region. Obviously, the climate in the desert is much different than the climate in the rainforest. As a result, different types of plants and animals live in each biome.
The abiotic factors, such as the amount of rainfall and the temperature, are going to influence other abiotic factors, such as the quality of the soil. This, in turn, is going to influence the plants that migrate into the ecosystem and thrive in that biome. It is the interaction of the abiotic and biotic factors that describe a biome and ecosystem.