Explain the roles each kingdom plays in an ecosystem and its importance to the sustainability of that ecosystem.

1. Monera - includes bacteria that plays several roles like nitrogen fixation.

2. Protista - produce more oxygen as compared to all land plants put together.

3. Fungi  - fungi degrades organic matter and recycle nutrients in the ecosystem.

4. Plantae - plants carry out the process of photosynthesis and maintains the CO2 and O2 level of the atmosphere.

5. Animalia - animals play a key role in stabilizing the food chain of the ecosystem.

climate change and pollution

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.