Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

1

October 22, 2012

Sep 2­7:18 PM

 Ecology Unit 1 Practice Test

Grade:«8»Subject:Science

Date:«10/2012

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

2

October 22, 2012

Oct 22­11:19 AM

Take the quiz or finish the quiz from class (you can start where we left off).  You can take it on paper.  The last slide will contain all of the answers 1­30.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

3

October 22, 2012

Sep 2­7:23 PM

1 An ecologist would refer to all of the tropical rainforests worldwide as

A a biosphereB a biomeC a communityD a populationLT­1 I can define and sequence the divisions (hierarchy) of life in ecology.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

4

October 22, 2012

Sep 2­7:25 PM

2 In ecology, scientists organize levels of life into different divisions. What is the largest division?

A biosphereB biomeC community D ecosystem

LT­1 I can define and sequence the divisions (hierarchy) of life in ecology.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

5

October 22, 2012

Sep 2­7:27 PM

3 Which of the following responses shows a correct sequence of the divisions of life in ecology?

Abiosphere, biome, population, community

Bbiome, community, ecosystem, population

Cbiome, ecosystem, population, community

Decosystem, community, population, organism

LT­1 I can define and sequence the divisions (hierarchy) of life in ecology.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

6

October 22, 2012

Sep 2­7:32 PM

4 The cumulative index value for this sample location would be _____.

A 11B 16C 7D 21

R

R

R

R

C

C

C

LT - 2 I can explain how macro invertebrates are used to assess water quality.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

7

October 22, 2012

Sep 2­7:54 PM

5 A 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"?

A PastureB Corn Field

C Sewage Treatment PlantD Factory

X

flow of river

LT-2 I can explain how macro invertebrates are used to assess water quality.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

8

October 22, 2012

Sep 2­7:55 PM

6 What single factor can best determine the water quality of a stream when doing a bio assessment sample?

AThe number of "group one" organisms present.

BThe number of "group two" organisms present

CThe number of "group three" organisms present.

DThe bio diversity of the sample. All groups present.

LT - 2 I can explain how macro invertebrates are used to assess water quality.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

9

October 22, 2012

Sep 2­8:04 PM

7 In an agricultural area, what factors might contribute to an algae bloom?

AExcess fertilizer from crops running into rivers, lakes, and streams.

BPesticides running off into the water.

C Low dissolved oxygenD Low pH levelsE Livestock waste in the water

Multiple Answer

LT-3 I can identify land use issues and can explain how their impact on water quality.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

10

October 22, 2012

Sep 2­8:10 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

AThe storm water increases the water temperature.

BThe storm water passes directly to the water treatment plant.

C

The storm water bypasses the water treatment plant and goes back into the rivers and streams untreated.

DThe storm water improves the water quality.LT-3 I can identify land use issues and can explain how their impact

on water quality.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

11

October 22, 2012

Sep 2­8:26 PM

9 Vegetation along a river or stream helps water quality by

Ashading the stream keeping water temperatures cooler

B keeping the stream bank stable thus reducing erosion.

Cproviding food and habitat to organisms in and around the stream.

Dfiltering out pollutants before they reach the stream.

E raising pH levels above 9.

Multiple Answer

LT-3 I can identify land use issues and can explain how their impact on water quality.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

12

October 22, 2012

Sep 2­8:47 PM

10 A substance with a pH of 2 would be classified as a(n)

A acidB baseC neutral

LT - 4 I can classify common substances as acids, bases, and neutrals.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

13

October 22, 2012

Sep 2­8:50 PM

11 A substance that has more H+ ions than OH- ions would be classified as

a(n)

A acidB baseC neutral

LT - 4 I can classify common substances as acids, bases, and neutrals.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

14

October 22, 2012

Sep 2­8:54 PM

12 A substance with pH of 8 would best be classified as a(n)

A a strong acidB a weak acidC a strong baseD a weak base

LT - 4 I can classify common substances as acids, bases, and neutrals.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

15

October 22, 2012

Sep 20­9:47 PM

13 Which of the following are human causes of turbidity?

A constructionB loggingC land developmentD farmingE low dissolved oxygen

Multiple Answer

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

16

October 22, 2012

Sep 20­9:48 PM

14 Planting cover crops after harvest, planting trees, using silt fences, and contour plowing are used to:

A measure water qualityB measure turbidityC control erosionD improve pH

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

17

October 22, 2012

Sep 20­9:51 PM

15 Choose all of the following that are consequences of high turbidity.

A increases water temperaturesB raises pH

Clowers bio index (macro invertebrates)

D increases dissolved oxygenE decreases dissolved oxygen

Multiple Answer

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

18

October 22, 2012

Sep 20­10:00 PM

16 What is the relationship between water temperature and dissolved oxygen? As temperature increases, dissolved oxygen

A increasesB decreasesC stays the same

DThere is no relationship between water temperature and D.O.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

19

October 22, 2012

Sep 20­10:04 PM

17 In the stacking water activity, which temperature of water was the least dense?

A hotB room temperatureC Ice water

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

20

October 22, 2012

Sep 20­10:06 PM

18 A flat, shallow container and a deep, narrow container each contained the same amount of water. Both were placed under a heat lamp for 20 minutes. What would the graph most likely look like at the end of the 20 min.?

Temp.  (C)

Time (min.)

A

B

C

D Temp.  (C)

Time (min.)

Temp.  (C)

Time (min.)

Temp.  (C)

Time (min.)

 Flat, shallow container

Deep, narrow containerKey

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

21

October 22, 2012

Oct 8­10:05 PM

19 The conductivity of a river is mainly due to

A turbidityB geology C sunlightD dissolved oxygen

LT 7 ­ I can define conductivity and can explain the factors that affect conductivity of water.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

22

October 22, 2012

Oct 8­10:25 PM

20 All of the factors would increase conductivity except

A warmer temperaturesB addition of sewageC low flow D oil spill

LT 7 ­ I can define conductivity and can explain the factors that affect conductivity of water.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

23

October 22, 2012

Oct 8­10:28 PM

21 All of the following statements are true about conductivity except:

AConductivity is unique to individual streams

BNormal conductivity in freshwater streams range from 0-1500 ms

Cconductivity lowers in warmer temperatures

D conductivity lowers with rainfall

LT 7 ­ I can define conductivity and can explain the factors that affect conductivity of water.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

24

October 22, 2012

Oct 8­10:30 PM

22 Which of the following does not increase the amount of dissolved oxygen in water?

A diffusion from the atmosphereB bacteria in the waterC plants in the waterD rapid movement of water over rocks

LT‐8 I can define dissolved oxygen and can explain a variety of circumstances that cause DO levels to change.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

25

October 22, 2012

Oct 8­10:32 PM

23 Dams can affect the amount of oxygen dissolved in water by all but which of the following ways?

A slowing the flow of the waterB decreasing aeration of waterC increasing the temperature of water

Dincreasing the amount of bacteria in the water

LT‐8 I can define dissolved oxygen and can explain a variety of circumstances that cause DO levels to change.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

26

October 22, 2012

Oct 8­10:34 PM

24 When do aquatic plants contribute the most dissolved oxygen to water?

A During the dayB During the nightC during periods when plants die

Dproduction of oxygen by plants is uniform, it doesn't change

LT‐8 I can define dissolved oxygen and can explain a variety of circumstances that cause DO levels to change.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

27

October 22, 2012

Oct 8­10:35 PM

25 The amount of oxygen dissolved in water is ______ the temperature of the water.

A directly related to B inversely related toC exactly the same asD not influenced by

LT ‐9 I can explain the relationship between DO and water temperature.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

28

October 22, 2012

Oct 8­10:37 PM

26 Which of the following graphs best represents the relationship between water temperature and dissolved oxygen?

A B

C D

LT ‐9 I can explain the relationship between DO and water temperature.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

29

October 22, 2012

Oct 8­10:45 PM

27 An inverse relationship is best described as an association of factors where:

Aan increase in one factor causes an increase in another factor

Ban increase in one factor causes a decrease in another factor

Ca decrease in one factor causes a decrease in another factor

Dchanges in one factor does not change another factor

LT ‐9 I can explain the relationship between DO and water temperature.

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

30

October 22, 2012

Oct 21­11:07 PM

28 This decreases at night since there is no photosynthesis.

A pHB temperatureC conductivityD turbidity

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

31

October 22, 2012

Oct 21­11:09 PM

29 This decreases during the day since plants use carbon dioxide from the water to make food.

A carbonic acidB temperatureC conductivityD pH

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

32

October 22, 2012

Oct 21­11:12 PM

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.

A carbonic acidB dissolved oxygenC pHD carbon dioxide gas

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

33

October 22, 2012

Oct 22­11:29 AM

1. B2. A3. D4. A5. A6. D7. A,E8. C9. A,B, C, D10. A11. A12. D

14. B15. A,C,E16. B17. A18. D19. B20. D21. B22. B23. D24. A25. B

26. D27. B28. A29. A30. B

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

34

October 22, 2012

Oct 21­11:12 PM

Ecology Unit 1 Practice Test LT 1­10 with Answer Key Attached.notebook

35

October 22, 2012

Sep 2­8:59 PM

R

R

R

R

C

C

C