Question

1. how do ecosystems contribute to nutrient cycling? a. through the continuous movement of elements like carbon and nitrogen b. by limiting the growth of plant species c. by absorbing pollutants and increasing soil erosion d. by isolating different species from one another 11. which trophic level usually contains organisms with the highest biomass in an ecosystem? a. secondary consumers b. tertiary consumers c. producers d. decomposers 12. what is a food web? a. a network of interconnected food chains depicting multiple feeding relationships b. a linear sequence of energy flow c. a representation of only herbivores in an ecosystem d. a diagram showing only the producers in an ecosystem

Explanation:

• For question 10: Nutrient cycling in ecosystems occurs via the continuous movement and transformation of elements like carbon and nitrogen through biotic and abiotic components.
• For question 11: Producers, such as plants, form the base of the food - chain and typically have the highest biomass as they are the primary energy - converters in an ecosystem.
• For question 12: A food web is a complex network of interconnected food chains that shows multiple feeding relationships among different organisms in an ecosystem.

Answer:

1. a. Through the continuous movement of elements like carbon and nitrogen
2. c. Producers
3. a. A network of interconnected food chains depicting multiple feeding relationships