The Importance of Water Answers

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1
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Which is biotic?

A
soil
B
leaf
C
water
D
snow
2
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Which principle states that two species in the same habitat cannot have the same niche?

A
niche exclusion principle
B
competitive exclusion principle
C
habitat exclusion principle
D
population exclusion principle
3

Hunter is studying for his ecology test. Which fact would least likely show up in his notes?

A
Populations can have negative effects on their environment.
B
Populations can affect the size of other populations.
C
Populations have no effect on their environment.
D
Populations can adapt to changes in the environment.
5

A rock is classified as

A
nonliving and abiotic.
B
nonliving and biotic.
C
living and abiotic.
D
living and biotic.
6

Which describes a grizzly bear’s habitat?

A
all the biotic factors in the ecosystem
B
all the abiotic factors in the ecosystem
C
the role of the bear in the ecosystem
D
the physical area where the bear lives
7

Which describes the habitat of a frog?

A
color for camouflage
B
prey for snakes
C
eats insects
D
marshes and ponds
8

Which is a biotic factor?

A
rotting carcass
B
rock
C
drop of water
D
fire
9

What is an organism’s niche?

A
the physical environment of the organism
B
the role that an organism plays in the environment
C
the traits that increase an organism’s survival
D
the competitors and predators of the organism

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