Aquatic Ecosystems Test
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by JENNIFER EWBANK
| 40 Questions
1
1 pt
What color of the electromagnetic spectrum (light) travels the furthest in water?
Red
White
Blue
2
1 pt
Most organisms live in the ____________________zone.
photic
aphotic
bentic
3
1 pt
When temperature and currents move nutrients from the bottom of the ocean to the top it is called___________
aphiotc
thermocline
upwelling
4
1 pt
The process that bacteria use to make their own food at deep sea vents.
photosynthesis
chemosynthesis
5
1 pt
Temperature, light and oxygen are examples of _______________factors
biotic
abiotic
6
1 pt
Freshwater has _______amount of salt in it.
more than 1 ppm
10 ppm
less than 1 ppm
more than 30 ppm
7
1 pt
Which natural disaster is made worse when people destroy esturies?
drought
flooding and storm damage
earthquakes
hurricanes
8
1 pt
What are areas where freshwater meets saltwater called?
wetlands
coastal byways
intertidal zones
esturaries
9
1 pt
What are coral reefs?
rock
deposits of bones of dead fish
outside skeletons of tiny, soft-bodied animals
plants
10
1 pt
What special adaptations do intertidal species have?
to resist UV rays
survive heavy waves
survive exposure of air
all the above
11
1 pt
How do fish use oxygen from the water?
aerobic respiration
anaerobic respiration
12
1 pt
Wetlands and esturaries purify water and filter out_______
salt
dead organisms
pollution
waste products
13
1 pt
This is the ocean shore between the lowest low tide and the highest high tide.
estuary
shore erosion
intertidal zone
intermoon zone
14
1 pt
Temperature, sunlight, and dissolved oxygen are all important factors in what?
land ecosystems
deserts
aquatic ecosystems
grasslands
15
1 pt
The distribution of life in aquatic ecosystems is determined by geography, light, depth, temperature, salinity, and dissolved oxygen.
True
False
16
1 pt
Where is most dissolved oxygen located
photic zone
aphotic zone
benthic zone
17
1 pt
Zone in freshwater ecosystems that is close to shore and contains many invertebrates.
littoral zone
limnetic zone
18
1 pt
Zone in freshwater ecosystems that have no plants and in open water.
littoral zone
limnetic zone
19
1 pt
Aquatic ecosystem that recharges the aquifers and filters pollutants.
wetlands
estuaries
mangrove forest
kelp forest
20
1 pt
Type of wetland that has shallow water and shrubs and trees. Rich in nutrients
swamp
marsh
bog
fen
21
1 pt
What part of your pollution lab represents excess phorsphorus and nitrogen in water?
water
salt water
soap water
fertilizer water
22
1 pt
Ecosystem that prevents soil erosion and flooding.
coral reefs
estuaries
rivers
wetlands
23
1 pt
Organisms living in this type of ecosystem can tolerate high changes in salinity and temperature.
coral reefs
estuaries
rivers
wetlands
24
1 pt
Type of tree that the roots can either grow up to capture oxygen or grow down to help it with support.
mangrove
kelp
maple
pine
25
1 pt
Type of force that allows objects to float and is determined by density.
bouyant force
kinetic force
gravitational force
electrical force
26
1 pt
______________________________prevent fish migrations, feeding and leads to salination.
dams
agriculture practices
urban development
river dredging
27
1 pt
____________________cause destruction of habitat, disease, parasites, and competition.
overfishing
forestry practices
dams
invasive species
28
1 pt
______________________________is caused by excessive food demands, market pressure, no management policies, and technology.
overfishing
forestry practices
dams
invasive species
29
1 pt
Starting a forest is called_______
afforestation
deforestation
30
1 pt
______________changes hydrology, ambient water temperatures, chemistry, turbidiy, reduced light penetration, algae blooms, and acidification.
overfishing
forestry practices
dams
invasive species
31
1 pt
Salinity and temperature have an effect on the oceans_______
density
gravity
wind
tides
32
1 pt
The ocean can be divided into 3 zones based on thier _______________.
biodiversity of life
distance from shore
wind currents
temperature currents
33
1 pt
Which zone has three parts?
photic zone
aphotic zone
benthic zone
34
1 pt
Which zone in the ocean ecosystem extinds from the low tide to the edge of the continental shelf?
Intertidal ecosystem
neritic ecosystem
Open-ocean ecosystem
35
1 pt
Which ocean ecosytem has extremes in temp, moisture, sun exposure, salinity, predation, and nutrients?
Intertidal Ecosystem
Neritic Ecosystem
Open ocean ecosystem
36
1 pt
What are the stinging tentacles that coral have which allows it to feed?
kelp
nematocysts
zooxanthellea
pytoplankton
37
1 pt
This ocean ecosystem that has sea otters as their keystone species
neritic ecosystems
open oceans
kelp forest
coral reefs
38
1 pt
This ocean ecosystem is at the edge of the continental shelf and contains few nutrients and 90% of the water.
intertidal ecosystem
neritic ecosystem
open-ocean ecosystem
39
1 pt
What are the primary producers in the open ocean food chain?
nematocysts
zooxanthellea
photoplankton
bioluminescenes
40
1 pt
Which part of the open ocean zone has rpredators that scavenge carcasses or organic detritus?
photic open ocean zone
aphotic open ocean zone
benthic open ocean zone
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