Populations and Ecosystems Review Today you will review all topics that you’ve learned in this unit. Read through the list of topics from this unit. Make sure that you feel confident about each of them before taking the unit test. If there are any topics that you forget or think you need to practice, go back and review those lessons now: using modeling to understand resource scarcity and competition understanding how resource scarcity and competition impact populations explaining how changes to abiotic components of ecosystems affect populations explaining how changes to biotic components of ecosystems affect populations understanding how human actions affect populations in positive and negative ways using evidence to support a claim about how changes in ecosystems affect populations Populations and Ecosystems Reflect Write a reflection about your learning in this unit. Your reflection should be at least three sentences. Use the following sentence starters as a guide:

The most interesting information I learned was...

The most interesting information I learned was how changes in abiotic factors can have a significant impact on populations. It was fascinating to see how something as simple as a change in temperature or pH levels can disrupt an entire ecosystem. I also enjoyed learning about how human actions, both positive and negative, can affect populations and ecosystems. Overall, this unit has given me a greater appreciation for the delicate balance of nature and the importance of conservation.