The Importance of Water — Test Answers

0 verified answers3 views
1
Free Preview

A large manufacturing company releases chemicals into the air every day. The chemicals eventually make their way into local bodies of water, killing many of the organisms that live in these areas.

A
habitat destruction due to pollution
B
habitat destruction due to poaching
C
pollution due to poaching
D
poaching due to habitat destruction
2
Free Preview

A muskrat population is growing exponentially. What might cause this population to enter logistic growth?

A
resources become scarce
B
birth rate increases
C
emigration decreases
D
carrying capacity is increased
3

A population of wolves in Wyoming experienced a rapid decline. Scientists found that 20 wolves died from rabies, 15 wolves died from mange (a parasitic mite), and 10 wolves died from natural causes. Wyoming experienced a recent drought, and many populations, including deer, bison, and bear, have diminished in the past year. What is best described in this scenario?

A
Wolves reached their greatest population growth.
B
Wolves were exposed to too many limiting factors.
C
Wolves were unaffected by other populations in Wyoming.
D
Wolves’ breeding season was affected by the drought.
4

What is the primary source of energy for food chains in an ecosystem?

A
decomposers
B
producers
C
consumers
D
the sun
5

By which process does water vapor become a cloud?

A
evaporation
B
transpiration
C
condensation
D
precipitation
6

A relationship in which one organism benefits while the other is neither harmed nor helped is called

A
predation.
B
parasitism.
C
commensalism.
D
mutualism.
7

Which graph best represents the relationship between niche diversity and biodiversity?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
8

What would happen to the size of the herbivore population if the producer population decreased?

A
decrease
B
double in number
C
stay the same
D
triple in number
9

Which is an example of biodiversity contributing to the sustainability of an ecosystem?

A
A meadow covers a large area of land, providing shelter to many organisms.
B
The ocean can only support organisms that can survive salty conditions.
C
One species of plant has been growing in a field for several years.
D
Many kinds of fruit trees support a variety of birds and other animals in a forest.
10

What term includes all the biotic and abiotic factors in an area?

A
ecosystem
B
population
C
community
D
organ
11

A family released their pet fish family into a local pond. The fish had no known local population. The impact of the fish on the ecosystem is not yet known. Which term would best define the fish added to the pond?

A
invasive species
B
introduced species
C
native species
D
symbiotic species
12

Humans affect the carbon cycle in many ways through the use of fossil fuels, clear cutting of forests, and controlled burns. Which process can help counteract these human interactions?

A
photosynthesis
B
respiration
C
decomposition
D
building proteins
13

Water exits the leaves of plants and enters the atmosphere. What is this process called?

A
photosynthesis
B
condensation
C
transpiration
D
precipitation
14

What most likely happened to the population of deer in 1963 and 1964?

Question illustration
A
The population increased its death rate.
B
The population exceeded past carrying capacity.
C
The population crashed down to 0.
D
The population steadily increased to get closer to carrying capacity.
15

Which best describes the relationship between two species and a niche?

A
If two species have the same niche, one species will always become extinct.
B
Two species are able to occupy the same niche in the same habitat.
C
Two species cannot occupy the same niche in the same habitat.
D
If two species have the same niche, one species will always move.

Did you find these answers helpful?