4. This photograph was taken in 2004, 24 years after Mount Saint Helens erupted. Compare and contrast this photo with the previous three. What changes do you see in the biotic and abiotic factors? Does anything surprise you about this series of photographs?

Answer: 

A biotic factor is a living element found within an ecosystem,while an abiotic factor is a nonliving element found within anecosystem. Choose a biome and ecosystem and provide an example of abiotic and abiotic factor found within your biome/ecosystem.Explain the importance of these factors to your specificbiome/ecosystem.

Which of the following statement is incorrect regarding ecosystem?

[A] It comprises of both biotic and abiotic factors.
[B] It is a closed system.
[C] It has its own productivity.
[D] It is a natural resource system.