Ecology Unit 1 Practice Test

Transcription

1 Ecology Unit 1 Practice Test Grade:«8» Subject:Science ate:«10/ n ecologist would refer to all of the tropical rainforests worldwide as a biosphere a biome a community a population LT 1 I can define and sequence the divisions (hierarchy) of life in ecology. Sep 2 7:18 PM Sep 2 7:23 PM 2 In ecology, scientists organize levels of life into different divisions. What is the largest division? biosphere biome community ecosystem LT 1 I can define and sequence the divisions (hierarchy) of life in ecology. 3 Which of the following responses shows a correct sequence of the divisions of life in ecology? biosphere, biome, population, community biome, community, ecosystem, population biome, ecosystem, population, community ecosystem, community, population, organism LT 1 I can define and sequence the divisions (hierarchy) of life in ecology. Sep 2 7:25 PM Sep 2 7:27 PM 4 The cumulative index value for this sample location would be bio assessment was done at point "x" on the map. The water was found to be "fair". What area on the map is most likely affecting the water at point "x"? Pasture orn Field X flow of river Sewage Treatment Plant Factory LT-2 I can explain how macro invertebrates are used to assess water quality. LT - 2 I can explain how macro invertebrates are used to assess water quality. Sep 2 7:32 PM Sep 2 7:54 PM 1

2 6 What single factor can best determine the water quality of a stream when doing a bio assessment sample? The number of "group one" organisms present. The number of "group two" organisms present The number of "group three" organisms present. The bio diversity of the sample. ll groups present. 7 In an agricultural area, what factors might contribute to an algae bloom? Excess fertilizer from crops running into rivers, lakes, and streams. Pesticides running off into the water. Low dissolved oxygen Low ph levels E Livestock waste in the water Multiple nswer LT-3 I can identify land use issues and can explain how their impact on water quality. LT - 2 I can explain how macro invertebrates are used to assess water quality. Sep 2 7:55 PM Sep 2 8:04 PM 8 In urban areas, storm water drains are able to handle large amounts of water to control street flooding. One consequence of this is The storm water increases the water temperature. The storm water passes directly to the water treatment plant. The storm water bypasses the water treatment plant and goes back into the rivers and streams untreated. The storm water improves the LT-3 I can identify land use issues and can explain how their impact water quality. on water quality. Sep 2 8:10 PM 9 Vegetation along a river or stream helps water quality by shading the stream keeping water temperatures cooler keeping the stream bank stable thus reducing erosion. providing food and habitat to organisms in and around the stream. filtering out pollutants before they reach the stream. E raising ph levels above 9. Sep 2 8:26 PM Multiple nswer LT-3 I can identify land use issues and can explain how their impact on water quality. 10 substance with a ph of 2 would be classified as a(n) acid base neutral LT - 4 I can classify common substances as acids, bases, and neutrals. 11 substance that has more H+ ions than OH- ions would be classified as a(n) acid base neutral LT - 4 I can classify common substances as acids, bases, and neutrals. Sep 2 8:47 PM Sep 2 8:50 PM 2

3 12 substance with ph of 8 would best be classified as a(n) a strong acid a weak acid a strong base a weak base LT - 4 I can classify common substances as acids, bases, and neutrals. 13 Which of the following are human causes of turbidity? construction logging land development farming E low dissolved oxygen Multiple nswer Sep 2 8:54 PM Sep 20 9:47 PM 14 Planting cover crops after harvest, planting trees, using silt fences, and contour plowing are used to: measure water quality measure turbidity control erosion improve ph 15 hoose all of the following that are consequences of high turbidity. increases water temperatures raises ph lowers bio index (macro invertebrates) increases dissolved oxygen E decreases dissolved oxygen Multiple nswer Sep 20 9:48 PM Sep 20 9:51 PM 16 What is the relationship between water temperature and dissolved oxygen? s temperature increases, dissolved oxygen increases decreases stays the same There is no relationship between water temperature and.o. 17 In the stacking water activity, which temperature of water was the least dense? hot room temperature Ice water Sep 20 10:00 PM Sep 20 10:04 PM 3

4 18 flat, shallow container and a deep, narrow container each contained the same amount of water. oth were placed under a heat lamp for 20 minutes. What would the graph most likely look like at the end of the 20 min.? () () Flat, shallow container eep, narrow container () () Key 19 The conductivity of a river is mainly due to turbidity geology sunlight dissolved oxygen LT 7 I can define conductivity and can explain the factors that affect conductivity of water. Sep 20 10:06 PM Oct 8 10:05 PM 20 ll of the factors would increase conductivity except warmer temperatures addition of sewage low flow oil spill LT 7 I can define conductivity and can explain the factors that affect conductivity of water. 21 ll of the following statements are true about conductivity except: onductivity is unique to individual streams Normal conductivity in freshwater streams range from ms conductivity lowers in warmer temperatures conductivity lowers with rainfall LT 7 I can define conductivity and can explain the factors that affect conductivity of water. Oct 8 10:25 PM Oct 8 10:28 PM 22 Which of the following does not increase the amount of dissolved oxygen in water? diffusion from the atmosphere bacteria in the water plants in the water rapid movement of water over rocks LT 8 I can define dissolved oxygen and can explain a variety of circumstances that cause O levels to change. 23 ams can affect the amount of oxygen dissolved in water by all but which of the following ways? slowing the flow of the water decreasing aeration of water increasing the temperature of water increasing the amount of bacteria in the water LT 8 I can define dissolved oxygen and can explain a variety of circumstances that cause O levels to change. Oct 8 10:30 PM Oct 8 10:32 PM 4

5 24 When do aquatic plants contribute the most dissolved oxygen to water? uring the day uring the night during periods when plants die production of oxygen by plants is uniform, it doesn't change 25 The amount of oxygen dissolved in water is the temperature of the water. directly related to inversely related to exactly the same as not influenced by LT 9 I can explain the relationship between O and water temperature. LT 8 change. I can define dissolved oxygen and can explain a variety of circumstances that cause O levels to Oct 8 10:34 PM Oct 8 10:35 PM 26 Which of the following graphs best represents the relationship between water temperature and dissolved oxygen? LT 9 I can explain the relationship between O and water temperature. 27 n inverse relationship is best described as an association of factors where: an increase in one factor causes an increase in another factor an increase in one factor causes a decrease in another factor a decrease in one factor causes a decrease in another factor changes in one factor does not change another factor LT 9 I can explain the relationship between O and water temperature. Oct 8 10:37 PM Oct 8 10:45 PM 28 This decreases at night since there is no photosynthesis. ph temperature conductivity turbidity 29 This decreases during the day since plants use carbon dioxide from the water to make food. carbonic acid temperature conductivity ph Oct 21 11:07 PM Oct 21 11:09 PM 5

6 30 This tends to increase during daylight hours since plants are using carbon dioxide and sunlight to make food and give off this gas as a by product. carbonic acid dissolved oxygen ph carbon dioxide gas NSWES TO TEST E E Oct 21 11:12 PM Oct 22 3:11 PM Sep 2 8:59 PM 6