Name: _______________________ Date: ________________________ The Great Big Ecology Review Worksheet! 1. Ecology is the ______________ of the ___________________ of organisms with one another and with their __________________ ___________________. 2. Fill in the levels of the biosphere (from largest to smallest) ________Biosphere_______ __________________________ __________________________ __________________________ __________________________ __________________________ 3. The biosphere extends ____________ above the Earth’s surface and _________ below the ocean’s surface. 4. What 2 factors of an ecosystem do we study? And name 2 examples of each factor. ________________________ _________________________ 1) _____________________ 1) ______________________ 2) _____________________ 2) ______________________ 5. Name at least 3 biotic and 3 abiotic factors in this ecosystem (ignore the numbers on the diagram). 6. This is an example of ______________ ___________________. 7. Name 4 land and 4 aquatic biomes. Land Aquatic __________________ __________________ __________________ __________________ __________________ __________________ __________________ __________________ Name: _______________________ Date: ________________________ 8.
This organism is ideally suited for a ______________ biome because __________________________________________________________________________________ __________________________________________________________________________________ 9.
Draw an energy chain with the sun, one producer and at least 3 consumers. 10. This picture the _______________ ___________________. represents 11. Why is phosphorus important? How is the phosphorus cycle different from the other cycles? _______________________________________________________________________________________________ _______________________________________________________________________________________________ 12. Name all the ways that humans release carbon dioxide into the atmosphere. _______________________________________________________________________________________________ _______________________________________________________________________________________________ 13. Why are bacteria important to us? In which cycle do we rely on them? _______________________________________________________________________________________________ _______________________________________________________________________________________________ 14. Population growth is controlled by _________________‐_________________ __________________ _________________ and by _________________‐_________________ __________________ _________________. 15. Density‐dependent limiting factors include: _____________________ _____________________ _____________________ _____________________ Name: _______________________ Date: ________________________ 16. Density‐dependent (DD) or Density‐independent (DI)? a) Freezing weather ____________ b) A volcanic eruption _____________ c) Predation _____________ d) Floods or fires _____________ e) Disease or parasites _______________ f) Tends to be biotic _____________ 17. a) A symbiotic relationship where one organism benefits and the other is harmed is called ___________________. b) A symbiotic relationship where both organisms benefit is called _________________. c) A symbiotic relationship where one organism benefits and the other is not harmed is called _____________. 18. a) What are the two types of population growth? _______________________________________________________________________________________________ b) What type of population growth are humans currently undergoing? _______________________________________________________________________________________________ c) What do you think will cause us to reach our carrying capacity? _______________________________________________________________________________________________ _______________________________________________________________________________________________ 19. Besides major natural disasters, what is the largest source of change to ecosystems? ________________________ 20. Name 2 ways that you can help minimize the human impact on our earth. ________________________________________________________________________ ________________________________________________________________________ 21. An ecosystem consists of: a) organisms b) soil, water and weather c) air d) all of the above 22. When an organism dies, the nitrogen in its body: a) can never be reused by other living things c) is released by the action of decomposers b) is immediately released into the atmosphere d) none of the above 23. Photosynthesis and cellular respiration are part of which cycle? a) water b) carbon c) nitrogen d) phosphorus 24. All organisms of the same species that live in a location are called a a) population b) community c) group d) herd 25. A consumer: a) does not make its own food b) always consumes a producer c) is also a herbivore d) is always a predator 26. What is an alternative primary source of energy (instead of the sun)? a) the moon b) sulfur vents c) nitrogen‐fixing bacteria d) grass