Ecology
Ecology is the study of the interactions of organisms with each other and their environment. Check out these interesting and helpful websites all about ecology!!
Food Chains and Food Webs: herbivores, carnivores, and omnivores
Brain Pop Movie
Symbiosis Video
Online Lab: Relationship between abiotic and biotic
Stalking Squirrels for Science Ecology Article
Invasive Species in the Great Lakes
Nab the Aquatic Invader Game
Answer Keys from Book
pg. 24-25 1. In symbiosis, two organisms have a close relationship with each other. In mutualism, two organisms that are interacting both benefit from the relationship, in commensalism one benefits and the other is not affected. However, in parasitism one organism benefits and the other is harmed. 2. abiotic 3. biotic 4. ecosystem 5. A community is made up of different populations. 6. All ecosystems are part of the biosphere. 7. Producers make their own food while consumers must eat other organisms to get energy. 8. c 9. d 10. b 11. c 12. d 13. a 14. d 15. b 16. Energy flows from the sun to plants (or other producers). Producers use most of the energy to survive and store some of the energy up. This stored energy passes on to the next creature in the food chain when it eats the plant. This creature uses most of the energy and stores the rest (less than plants). This continues up the food chain and the top carnivore receives the least amount of stored energy. 17. When gray wolves disappeared, the population of deer increased. This caused overgrazing, which affected many creatures in the park and caused deer population to crash. 18. All trees might compete for sunlight, water, or space 19. Limiting factors generally define an environment's carrying capacity. 22. An ecosystem with no decomposers could not exist very long because the ecosystem would soon become buried in dead organisms. Decomposers are needed to complete the "matter cycle" and return nutrients to the environment. 23. Species such as gar fish and herons would not be as healthy without alligators to eat sick or old individuals. Herons might experience a population increase, which would lead to fewer gar. Eventually, the herons may die off if the gar population becomes too small. 24. Answers may vary but should be supported by evidence. 25. prairie dogs 26. the top level 27. No, an energy pyramid like this could not exist in nature. 28. The pyramid should be widened at the bottom and narrowed at the top. |
pg. 26-27
Passage 1 1. A 2. I 3. B Passage 2 1. B 2. H 3. D Interpreting Graphics 1. B 2. F 3. D Math 1. A 2. H 3. C 4. H |
pg. 94-95
5. Biodiversity 6. D 7. B 12. To maintain biodiversity, people can protect and preserve habitats, drive less to reduce pollution, etc. 17. A farm that has many kinds of crops is less likely to be wiped out by a plant disease than a farm that has a single crop. A plant disease could destroy the entire crop of a single-crop farm, whereas the disease likely would not kill all of the crops on a multi-crop farm. However, a farm that has many crops often doesn't produce as much of a single crop as a farm that grows that crop alone does. 18. The new species will compete with the local species for food, but without predators to thin the population of the new species, the population of the new species will continue to grow. Eventually, the new species may take over the area. |
Extra Info
Video: Global Warming and Christians responsibility for the planet
World Carbon Emissions
Read about Climate Change around the world at npr.org
Play a game to learn more about malaria!
World Carbon Emissions
Read about Climate Change around the world at npr.org
Play a game to learn more about malaria!
ecology_content_standards_student_language.docx | |
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