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Enriched Science Chapter 9 Part 2
Test Description: Biomes
Instructions: Answer all questions to get your test result.
1) Decaying organisms fall to the bottom of a pond, lake, or wetland and add nutrients to the water. What is this process called?
A
oxygenation
B
nitrification
C
decay supplementation
D
eutrophication
2) Which is NOT an aquatic ecosystem?
A
wetland
B
freshwater
C
estuary
D
taiga
3) As plants in an area undergoing ecological succession die, ________.
A
no plants grow in their place
B
they are replaced by plants of the same species
C
they are replaced by plants of a different species
D
they are replaced by plants of a different species or they are replaced by plants of the same species
4) What is salinity?
A
the amount of salt dissolved in water
B
the amount of pollution in water
C
the speed of the flow of water in a stream
D
the amount of oxygen dissolved in water
5) Which of these factors is abiotic?
A
frog
B
bird
C
wind
D
hawk
6) What is the first species to colonize new or undisturbed land?
A
successive species
B
primary species
C
pioneer species
D
invasive species
7) Which statement is true of ponds but NOT lakes?
A
People fill them in with sediment to create land for houses and other structures.
B
Sunlight reaches the bottom of the body of water.
C
Plants surround the shore.
D
Surface water contains organisms that use sunlight for photosynthesis.
8) In the open ocean, where does photosynthesis take place?
A
in all the zones
B
from 1,000 m to 200 m
C
from 200 m to the surface
D
from the ocean floor to a depth of 1,000 m
9) If you see a wetland with trees growing in it, ________.
A
it is most likely freshwater
B
there is no way to predict whether it is freshwater or saltwater
C
it is saltwater and freshwater
D
it is most likely salt water
10) Which has higher oxygen levels?
A
slower moving water
B
Speed of water has no effect on the oxygen content of the water.
C
faster moving water
D
All water has the same amount of oxygen.
*select an answer for all questions
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