How can complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions result in new problems and changes in the ecosystem? 1.)CLAIM: A statement that answers the original focus question or problem. What conclusion can you make about your original focus question or problem.

2)EVIDENCE: Scientific data that supports the claim. The data needs to be appropriate and sufficient to support the claim. What data or observations do you have to support your claim.

3)REASONING: A justification that links the claim and evidence and includes appropriate and sufficient scientific principles to defend the claim and evidence. How does the data you used for evidence support your claim.