1. Which of these is an abiotic factor in the tropical rainforest?

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1 1. Which of these is an abiotic factor in the tropical rainforest? a. fungi b. rain c. bacteria d. fruit 2. The biome is the largest on earth. a. terrestrial b. polar c. freshwater d. marine 3. An aquatic food web is shown below. Which of the following describes how energy is transferred between the crustacean and the dolphin? a. Energy is transferred from the crustacean to the dolphin. b. The crustacean and the dolphin both transfer energy to each other. c. Energy is transferred from the dolphin to the crustacean. d. Energy is not transferred between the crustacean and the dolphin. 4. Which of the following is a producer in the food chain shown below? Sunlight > Rose > Honeybee > Skunk > Eagle a. Sunlight b. skunk c. rose d. Honeybee 5.An energy ecosystem is shown below. Which of the following is true about this ecosystem?

2 a. Energy in this ecosystem flows from the grasshopper to the grass. b. Energy in this ecosystem flows from the snake to the grasshopper. c. Energy in this ecosystem flows from hawks to snake. d. Energy in this ecosystem flows from the grass to grasshoppers. 6. What would most likely happen if insects and rabbits were removed from this ecosystem? a. A decrease in plants b. A decrease in cougars and snakes c. An increase in deer and mice d. An increase in snakes and cougars 7. Which organism makes its own food? a. whale b. zebra c. a tulip d. a fish 8. Baleen whales are the largest animals living in the oceans. How do baleen whales get food? A. They filter plankton, krill, and small fish out of ocean water. B. They hunt penguins and sea lions near the South Pole. C. They work with dolphins to trap and eat sharks. D. They eat coral that die along the edges of tropical reefs. 9. Which of the following would be considered a Population? a. A pack of wolves c. Humans with their pets b. Rocks, Trees, Shelter d. Niche

3 10. The most common gas in the Atmosphere in the air we breathe is a. Oxygen b. Carbon Dioxide c. Nitrogen d. Carbon Monoxide 11. Which abiotic factor most affects an area s climate? a. Elevation b. Latitude c. Soil d. Gas 12. Which of the following is an abiotic factor in a temperate forest? A. oxygen B. fungi C. bacteria D.lichen 13. In a protected cove along the Tennessee River, algae produce oxygen that supports the animals that live there. Tadpoles and mayfly larvae eat algae and keep it in check. Small mouth bass eat mayfly larvae, tadpoles, and algae. Crayfish live in the rocks and eat mayfly larvae, tadpoles, and algae, along with dead fish, dead insects, and dead plants that settle between the rocks along the bottom of the cove. Which animal in the cove is a scavenger? A. tadpole B. small mouth bass C. crayfish D. mayfly larvae 14. What role do mushrooms play in the transfer of energy and materials in an ecosystem? A. Mushrooms use sunlight to make food for other organisms to eat. B. Mushrooms produce oxygen, which many organisms need to survive. C. Mushrooms recycle matter by breaking down dead organisms and wastes. D. Mushrooms limit the populations of small insects by trapping and eating them. 15. Which of the following get it s energy by the sun? a. Tertiary Consumer b. Producer c. Decomposer d. Primary Consumer 16. What percent of energy is transferred from one trophic level to the next? a. 1% b. 10% c. 100% d..10% 17. The sun s energy is used in, a process in which producers create their own energy. a. Chemosynthesis b. Osmosis c. Photosynthesis d. Decomposition

4 18. One Year in the Appalachian Mountains, the oak trees produced five times the normal amount of acorns. As a result, the chipmunks had plenty to eat. Which of the following was also most likely to happen because of the extra acorns? a. The chipmunks increased in number. b. The chipmunks decreased in number. c. Many chipmunks left the forest. d. The chipmunks had less time to play. 19. Which trophic level contains organisms that consume only producers? a. Producers c. Secondary Consumers b. Primary Consumers d. Tertiary Consumers 20. Which of the following would be considered a Population? a. A pack of wolves c. Humans with their pets b. Rocks, Trees, Shelter d. Niche 21. The most common gas in the Atmosphere in the air we breathe is a. Oxygen b. Carbon Dioxide c. Nitrogen d. Carbon Monoxide 22. Which abiotic factor most affects an area s climate? a. Elevation b. Latitude c. Soil d. Gas 23. Wolves were recently reintroduced into the food chain of a temperate forest, as shown below.

5 What is most likely to change in the food chain? A. Ravens will decrease; plants and deer will increase. B. Ravens will increase; plants and deer will decrease. C. Deer will increase; plants and ravens will decrease. D. Deer will decrease; plants and ravens will increase.

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