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Ecology And Environment Quiz 8 (30 MCQs)

Quiz Instructions

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1. Carbon exists in the atmosphere as part of
2. SECONDARY PRODUCERS ARE
3. The variable that the scientist manipulates in an experiment is called the
4. A natural resource that forms more slowly than the rate at which it is consumed is called
5. Which word means "safe to drink? "
6. Animal that eats both producers and consumers.
7. What does fungi do to dead plants and animals?
8. What can farmers use to prevent the harming of beneficial insects?
9. Organisms with the most beneficial traits will survive. This is commonly known as .....
10. The process by which substances increase in concentration as one moves up a food chain
11. Bacteria, fungi, and earthworms are examples of:
12. Which gas makes up 78 percent of our atmosphere but can be used by plants only when transformed by bacteria first?
13. AN ORGANISM THAT LIVES IN OR ANOTHER ORGANISM AND DERIVE DERIVE ITS NUTRIENTS FOR ITSELF AT THE EXPENSE OF HOST IS CALLED
14. Which of the following historical events most likely triggered the largest increase in the human population?
15. This organelle takes food and turns it into ENERGY for plant and animal cells.
16. This biome contains mostly spruce trees and Douglas firs, which are both evergreen. The winters are long and cold and the summers are short and rainy. The soil is very rich. Moose and elk live here. This biome is classified as a
17. Precipitations carrying large amounts of dissolved acids, which kills wildlife and damages buildings, forests, and crops.
18. Organism that captures energy from sunlight or inorganic substances to makes it's own food; provides the foundation of the food supply for other organisms; also called a producer.
19. Photosynthesis is important because .....
20. Where the better adapted organisms survive to pass traits along to offspring.
21. All the organisms in an ecosystem that belong to the same species.
22. A food chain is represented belowgrass > rabbit > hawkStructures within the rabbit are formed using
23. Rabbits and foxes both occupy an ecosystem. If the rabbit population is depleted by disease, what will happen to the fox population?
24. A region of land that drains into a river.
25. Which substance is used in a sewage treatment system to kill harmful bacteria?
26. Recycling rose from 6.6% of trash in 1965 to ..... of trash being recycled by Americans in 1991.
27. Population growth in the 20th century accelerated which environmental stress(es)?
28. Many years ago, a volcanic eruption killed many plants and animals on an island. Today the island looks much as it did before the eruption. Which statement is the best possible explanation for this?
29. How have humans mitigated their impact on the biosphere?
30. The number one threat to biodiversity is
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