Question

energy in an ecosystem flows directly from
a. producers to tertiary consumers
b. producers to secondary consumers
c. tertiary consumers to secondary consumers
d. secondary consumers to tertiary consumers
please select the best answer from the choices provided
a
b
c
d

Explanation:

In an ecosystem, energy flows through the food chain. Producers (like plants) convert sunlight into energy. Primary consumers eat producers. Secondary consumers eat primary consumers. Tertiary consumers eat secondary consumers. So energy flows from producers to primary consumers to secondary consumers to tertiary consumers. Option d (secondary consumers to tertiary consumers) shows a direct energy flow in the correct order of the food chain. Options a and b skip levels (producers don't directly go to tertiary or secondary consumers without passing through primary consumers first). Option c has the flow in the wrong direction (tertiary consumers eat secondary, so energy goes from secondary to tertiary, not the other way around).

Answer:

D. secondary consumers to tertiary consumers