It is true that r-related species have a short life span and an early reproduction cycle. R-related species also known as r-strategist have a short and simple life span. Due to their simple life span, their nutrient exchange rate with the environment is rapid. Unlike K-selected species, they have the ability to reproduce at a young age. They reproduce a large number of off-springs, but many of their off-springs tend to die before attainment of their reproductive age.
The answer to the question above is a cell.
Answer: Humans and other organisms use the soil to decompose these waste materials into new materials.
Explanation:
photosynthesis is the process that producers go through to make food using sunlight.