4 Written Questions
3 Multiple Choice Questions
- Which of the following is NOT a biotic factor?
- The relationship between humans and Escherichia coli bacteria in their intestines is an example of
- The struggle among organisms for the limited resources in an ecosystem is called
3 True/False Questions
warning coloring → A defense strategy in which an organism draws attention to itself is
niche → Which of the following is NOT an abiotic factor?
commensalism → A relationship in which one organism benefits and the other is neither helped nor harmed is called