Ecosystems And Biomes Part 2: Question Preview (ID: 24259)


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Suppose loggers cleared a large area of boreal forest. Describe the natural changes that would occur in the area over time. Use some science vocabulary.
a) First more erosion will occur. Slowly secondary succession will occur and young saplings will emerge, then eventually trees b) First more erosion will occur. Slowly primary succession will occur and young saplings will emerge, then eventually trees c) First more erosion will occur. Secondary succession will occur and trees will grow very quickly. d) Since the ground is stable secondary succession will occur and young saplings will emerge within a day, then trees.
The grassland biome has few trees. the tundra has no trees at all. What conditions in each of the two biomes cause this similarity?
a) In the grassland, it is too cold for trees to grow. The tundra lacks rainfall is is too cold for trees. b) In the grassland, large grazing animals keep young trees from growing. The tundra lacks rainfall is is too cold for trees. c) In the grassland, large grazing animals keep young trees from growing. The tundra is too hot for trees. d) In the grassland, it is too dry. The tundra lacks rainfall is is too cold for trees.
Looking at you diagram and the steps you described. Why is Step 2 so important?
a) Most organisms cannot use free nitroben. Nitrogen fixation by bacteria provides a compound that organisms can use. b) Most organisms cannot use free nitroben. Nitrogen fixation by viruses provides a compound that organisms can use. c) Most organisms absorb free nitroben so this diagram is wrong. d) Most organisms cannot use fixed nitroben. Nitrogen fixation by bacteria provides oxygen that organisms can use.
Looking at your study guide, what is the diagram showing?
a) food chain b) food web c) nitrogen cycle d) water cycle
Looking at the diagram on your study guide, what are steps 1, 2, 8, and 9?
a) 1. Free nitrogen in the air. 2. Bacteria fixing nitrogen. 8 Composers breakaing down waste. 9. Bacteria releases nitrogen. b) 1. Fixed nitrogen in air. 2. Bacteria freeing nitrogen. 8 Decomposers breaking down waste. 9. Bacteria releases nitrogen. c) 1. Free nitrogen in the air. 2. Bacteria releasing nitrogen. 8 Decomposers breaking down waste. 9. Bacteria fixing nitrogen. d) 1. Free nitrogen in the air. 2. Bacteria fixing nitrogen. 8 Decomposers breaking down waste. 9. Bacteria releases nitrogen.
Describe the major differences between tropical rain forest and a desert.
a) TRF= many species, constant temperature, a lot of precipitation. Desert,= few species, constant temps, and little precip. b) TRF= many species, extreme temperatures, a lot of precipitation. Desert,= few species, extreme temps, and very little precip. c) TRF= many species, constant temperature, a lot of precipitation. Desert,= few species, extreme temps, and very little precip. d) TRF= many species, constant temperature, little precipitation. Desert,= few species, extreme temps, and very little precip.
How can competition limit the dispersal of a species?
a) When a species moves into a new area, it must compete for resources. If the new species cannot find its niche, it will die. b) When a species moves into a new area, it must compete for resources. If the new species cannot find its rhythm, it will die. c) When a species moves into a new area, it always out competes the original species there. d) When a species moves into a new area, it must compete for resources. It never survives.
Calculate total yearly rainfall. J=17 F=18 M=17 A=22 M= 21 J=21 J=22 A=21 S= 19 O= 20 N=18 D=18
a) 230 cm b) 232 cm c) 234 cm d) 236 cm
Which biome does question 1 represent?
a) Deciduous Forest Biome b) Grassland Biome c) Savanna(h) Biome d) Tropical Rain Forest Biome
Explain how you were able to identify the biome in Question 2.
a) It receives some rain and it's temperature is fairly constant throughout the year. b) The biome receives a lot of rain, and it's temperature is fairly constant throughout the year. c) It receives little rain and it's temperature is fairly constant throughout the year. d) It receives a lot of rain and it's temperature fluctuates a lot.
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