unit #3 quiz #2 grade: «grade» subject: aquatic science date: «date»
TRANSCRIPT
![Page 1: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/1.jpg)
Unit #3 Quiz #2
Grade:«grade»
Subject:Aquatic Science
Date:«date»
![Page 2: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/2.jpg)
1 Microbes account for about ________% of all the biological mass on Earth.
A 98%
B 75%
C 50%
D 22%
![Page 3: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/3.jpg)
2 Which of the following reactions is responsible for fixing nitrogen:
A NH4
+ --> NO2
-
B NO2
- --> NO3
-
C NO3
- --> N2
D N2 --> NH3
![Page 4: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/4.jpg)
3 At a neutral pH, which molecule is in the highest concentration
A carbonate
B bicarbonate
C carbonic acid
D carbon dioxide
![Page 5: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/5.jpg)
4 A reaction between an acid and a base will always form water and ________.
A acid
B base
C salt
D carbonate
![Page 6: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/6.jpg)
5 HCO3
- is
A carbonate
B bicarbonate
C carbonic acid
D carbon dioxide
![Page 7: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/7.jpg)
6 Which of the following is NOT a protist:
A Hydra B Amoeba
C Euglena D Paramecium
![Page 8: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/8.jpg)
7 H2CO3 is
A carbonate
B bicarbonate
C carbonic acid
D carbon dioxide
![Page 9: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/9.jpg)
8 Which of the following is an example of molecular dissociation:
A H+ + OH- --> H2O
B H2O --> H+ OH-
C Fe + CuSO4 --> Cu + FeSO4
D AgNO3 + HCl --> HNO3 + AgCl
![Page 10: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/10.jpg)
9 Which of the following makes up the smallest percent of global freshwater:
A glaciers
B permafrost
C groundwater
D surface & atmospheric water
![Page 11: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/11.jpg)
10 The measure of water's ability to buffer against addition of an acid, i.e., ability to resist change of pH upon addition of an acid defines
A salinity
B alkalinity
C hydrophilic
D carbonate
![Page 12: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/12.jpg)
11 What percentage of all of the planet's water is fresh water?
A 98%
B 70%
C 30%
D 2.5%
![Page 13: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/13.jpg)
12 Which of the following is considered an indicator species:
A daphnia
B hydra
C diatoms
D amoebas
![Page 14: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/14.jpg)
13 Which of the following describes a microbe's prime niche
A An environment that has a high amount of competition for resources
B An environment that has enough nutrients for the microbe to survive
C An environment that has enough nutrients for the microbe to thrive
D An environment that lacks any usable nutrients and is inhospitable to microbes
![Page 15: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/15.jpg)
14 The following image demonstrates:
A high species richness but low abundance
B high species abundance but low richness
C high species richness and high species abundance
D low species richness and low species abundance
![Page 16: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/16.jpg)
15 Which of the following describes the behavior of a hydrophobic substance:
A A solution that easily mixes into salt water
B A salt sample is added to fresh water & it quickly dissolves
C A solution is added to a water sample and the solution floats on top of the water
D A large sample of sugar is added to fresh water, but does not dissolve until heat is applied to the mixture
![Page 17: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/17.jpg)
16 Hydrophilic means
A "water changing"
B "water hating"
C "water fearing"
D "water loving"
![Page 18: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/18.jpg)
17 CO3
2- is
A carbonate
B bicarbonate
C carbonic acid
D carbon dioxide
![Page 19: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/19.jpg)
18 Which element is always associated with organic compounds:
A salt
B carbon
C oxygen
D hydroxide
![Page 20: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/20.jpg)
19 Which element is always associated with organic compounds:
A salt
B carbon
C oxygen
D hydroxide
![Page 21: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/21.jpg)
20 Which of the following is primarily responsible for "fixing" carbon dioxide:
A autotrophs
B chemoautotrophs
C heterotrophs
D biopolymers
![Page 22: Unit #3 Quiz #2 Grade: «grade» Subject: Aquatic Science Date: «date»](https://reader035.vdocuments.us/reader035/viewer/2022081503/5697bfdb1a28abf838cb0ce7/html5/thumbnails/22.jpg)