Lab 3

Question 1

decomposition of organic pollution is done by

Answer 1

aerobic bacteria

Question 2

aerobic bacteria causes

Answer 2

oxygen depletion, dead fish

Question 3

chlamydomonas PI

Answer 3

4

Question 4

chlorella PI

Answer 4

3

Question 5

closterium PI

Answer 5

1

Question 6

euglena PI

Answer 6

5

Question 7

navicula PI

Answer 7

3

Question 8

oscillatoria PI

Answer 8

5

Question 9

pandorina PI

Answer 9

1

Question 10

phacus PI

Answer 10

2

Question 11

scenedsmus PI

Answer 11

4

Question 12

stigeoclonium PI

Answer 12

2

Question 13

synedra PI

Answer 13

2

Question 14

(x) indicates the relative tolerance for organic pollution with 5 being the highest level of tolerance

Answer 14

pollution index

Question 15

microsterias

Answer 15

NI

Question 16

a pollution index value is assigned only if the desnity of the alga per ml of lake water is

Answer 16

50 or greater

Question 17

a score of (x) is evidence of high organic pollution

Answer 17

20 or greater

Question 18

a score of (x) indicates the absence of organic pollution

Answer 18

15 or lower

Question 19

lakes that are heavily polluted have (x) algal diversity

Answer 19

low

Question 20

chlorella is

Answer 20

unicellular and non-motile

Question 21

closterium is

Answer 21

unicellular and non-motile

Question 22

micrasterias is

Answer 22

unicellular and non-motile

Question 23

navicula is

Answer 23

unicellular and non-motile

Question 24

staurastrum is

Answer 24

unicellular and non-motile

Question 25

euglena is

Answer 25

unicellular motile

Question 26

phacus is

Answer 26

unicellular and motile

Question 27

chlamydomonas is

Answer 27

unicellular and motile

Question 28

scenedesmus is

Answer 28

colonial algae

Question 29

pandorina is

Answer 29

colonial algae

Question 30

pediastrum is

Answer 30

colonial

Question 31

oscillatoria is

Answer 31

filamenous

Question 32

stigeoclonium is

Answer 32

filamenous

Question 33

bulbochaete is

Answer 33

filamenous

Question 34

examples of organic pollution

Answer 34

manure, sewage, paper waste