Name_____________________________________________________________________Date_________________ Questions 1. Define organism and write a sentence. (Example: The bacteria E. coli lives in your stomach) 2. Define population and write a sentence. 3. Define community and write a sentence. 4. Define ecosystem and write a sentence. 5. What is the difference between niche and habitat? 3. Create a Venn diagram showing which organisms from your food web are r- species, which k- species and which might show characteristics of both r- species, which k- species 6. Do you think cockroaches, mosquitoes and rats are likely to be classified as r or k species? What characteristics do these species have that would allow them to fit into this category? 7. Do you think endangered species (Rhinoceros, tiger, elephant…) are likely to be classified as r or k species? What characteristics do these species have that would allow them to fit into this category? 8. If you had a choice would you rather be an r-species or a k- species? Explain your answer 9. Two plant species exist in a forest. One is fairly long-lived and produces few large seeds. The other is short-lived and produces many small seeds. Which species is most likely an r- species and which species is most likely a k- species? Explain your answer. 10. List three traits of an r-species and three traits of a k-species. Think of an example for each.