Question

which statement is true? (1 point)

• some biomes can be too small to see without a microscope.
• biomes contain thousands of ecosystems and provide ecosystem services.
• an ecosystem consists of living things that interact in the same environment.
• an ecosystem is classified by factors such as temperature and precipitation.

Explanation:

1. Analyze the first option: Biomes are large - scale ecological communities (e.g., tropical rainforest, desert). They are not so small that they need a microscope to be seen. Microscopic ecological units are more like micro - ecosystems or microbial communities, not biomes. So this statement is false.
2. Analyze the second option: A biome is a large area with a distinct climate and characteristic plant and animal communities. Within a biome, there can be thousands of different ecosystems. For example, in a tropical rainforest biome, there are ecosystems like a stream ecosystem within the forest, a tree - top ecosystem, etc. And biomes do provide ecosystem services such as carbon sequestration, water purification, etc. This statement is true.
3. Analyze the third option: An ecosystem consists of both living (biotic) and non - living (abiotic) components that interact. It's not just the living things. For example, in a pond ecosystem, the water (abiotic), rocks (abiotic) interact with the fish (biotic), plants (biotic), etc. So this statement is false.
4. Analyze the fourth option: Biomes are classified by factors such as temperature and precipitation. Ecosystems are classified based on factors like the type of community (e.g., forest ecosystem, grassland ecosystem), the type of environment (aquatic, terrestrial), etc. So this statement is false.

Answer:

B. Biomes contain thousands of ecosystems and provide ecosystem services.