Review for Friday's quiz (e-copy of review given last week)

Science 7 Review – Unit 1 – Topics 5-7

1. Why is reducing waste better for our environment than recycling? Give 3 reasons.

2. How many biomes are there in the world? Name them.

3. True or false? Females are an example of a species. (If false, explain why.)

4. What is meant by the term “population”?

5. What does “community” mean, in the context of ecosystems?

6. List five examples of technology that humans have created to deal with their garbage/waste.

7. A forest fire burns a once-populated area to the ground and everything is destroyed. After some time, small plants start to regrow. What is this process an example of? (2 words)

8. What is a pioneer species?

9. Could a fox be an example of a pioneer species? Why or why not?

10. What is a climax community? Give an example of a climax community that you have seen in your own experience.

11. Which two biomes are present in Australia? What does this tell you about their climate?

12. Who has a bigger impact on their ecosystem: a human or a wolf? Explain your answer with three reasons from the textbook.

13. Picture a forest full of large trees. Identify one biotic and one abiotic factor that is capable of altering the forest ecosystem.

14. Explain why using pesticides can be harmful to humans.

15. Label each statement as a description of population, species, or community:

a. There are 40,000 people in Prince Albert. ____________________________

b. My dog had puppies. __________________________

c. At Waskesiu I saw several types of birds, insects, and even three pitcher plants on my walk around the Boundary Bog! _________________

d. My mom planted four rose bushes in her garden. ______________________

16. Identify and explain two factors (biotic or abiotic) that could alter the populations of an ecosystem.