WorksheetsEnvironmental Science Unit 1 Test - Ecosystems
Total questions: 48
Worksheet time: 24mins
Tropical rain forests have average temperatures ranging from 70 to 85°F and precipitation ranging from 80 to 400 inches. These are characteristics of this biome's
weather
climate
climatograph
community
The rate at which primary producers convert energy to biomass is known as ______________, and is highest in the ________________.
Cellular respiration; tropical rainforests
10% rule; tundra
Net primary productivity; tropical rainforests
Net primary productivity; tundra
Why is net primary productivity highest in the photic zone of aquatic ecosystems?
More nutrients from soil
More nutrients & sunlight
Less nutrients & oxygen
Less oxygen & more sunlight
What percentage of Earth's surface is covered by water?
75
90
25
50
What is labeled J?
Photic Zone
Aphotic Zone
Benthic Zone
Littoral
What is labeled C?
Photic Zone
Aphotic Zone
Benthic Zone
Littoral
What is labeled X?
Photic Zone
Aphotic Zone
Benthic Zone
Littoral
What is labeled V?
Photic Zone
Aphotic Zone
Benthic Zone
Littoral
Which zone is going to have more more life?
C
J
X
F
A wetland is an example of a(n) _____________ ecosystem.
Flowing
Standing
Terrestrial
Which zone extends beyond the continental shelf?
Intertidal
Continental
Open Ocean (Oceanic)
Littoral
Water vapor changing into liquid is known as
Evaporation
Condensation
Transpiration
Recharge
What process is shown?
Cellular Respiration
Photosynthesis
Condensation
Decomposition
How much energy is NOT available when transferred from one trophic level to the next?
10
25
50
90
Which of the following eats both producers and consumers?
herbivores
carnivores
omnivores
detritovores
Where does a primary producer get its energy?
other producers
primary consumers
secondary consumers
sunlight
Which of the following include ALL living things in an ecosystem?
population
community
ecosystem
abiotic
Water levels in a salt marsh is considered a(n) ____________ factor.
biotic
abiotic
benthic
photic
What conditions increase net primary production?
warm
cool
wet
dry
Which of the following is the function of primary producers?
solar energy -> organic sugars
organic sugars -> oxygen
oxygen -> organic sugars
oxygen -> carbon dioxide
Organisms that must eat other organisms for energy are called
producers
consumers
detritovores
decomposers
What is the secondary consumer?
corn
mouse
snake
owl
The simplest and most complex levels of organization for ecosystems are _________________ & ________________, respectively.
community; ecosystem
population; biosphere
individual;biosphere
individual; biome
A group of ecosystems that share similar abiotic & biotic conditions is called a
community
population
biosphere
biome
Prolonged torpor or dormancy of an animal during a HOT OR DRY period.
hibernation
estivation
adaptation
conservation
Area flooded with water at least part of the year
Upwelling
Flood plain
Wetland
Aquifer
Area near a river's course that are flooded periodically as water levels rise
Upwelling
Flood plain
Wetland
Aquifer
Body of permeable rock which can contain or transmit groundwater
Aquifer
Well
Upwelling
Water table
What process is pictured?
decomposition
energy transfer
cellular respiration
eutrophication
Why is nitrogen fixation important?
It converts nitrate to nitrogen gas
It converts ammonium to nitrate
It converts nitrogen gas to ammonium
It converts nitrogen gas to nitrite
Which of the following is not needed for photosynthesis to occur?
carbon dioxide
sunlight
nitrogen
water
Select all the factors that characterize a biome
climate
community
human impacts
location
What characteristic of aquatic biomes is represented in the picture?
salinity
depth
flowing or standing
climate
What characteristic of aquatic biomes is represented in the picture?
salinity
depth
flowing or standing
climate
Which of the following is a human impact on the water cycle?
overuse of water causing water shortages
eutrophication
burning fossil fuels
burning forests
What percentage of water on earth is freshwater?
97.5
79
20
2.5
Where is most of the freshwater on earth found?
surface water
groundwater
oceans
glaciers & icecaps
Which of the following is why a food web is a better representation of energy transfer in ecosystems than a food chain?
food chains are better
they show linear feeding relationships
they only contain a few of the organisms
they show multiple feeding relationships of many different organisms
Which of the following is the correct order of the levels of organization from smallest to largest?
population, individual, community, ecosystem, biosphere
individual, community, population, ecosystem, biosphere
biosphere, ecosystem, community, population, individual
individual, population, community, ecosystem, biosphere
Which organism is a top level consumer, and therefore, will have the lowest relative populations (biomass)?
Wolf
Rat
Thrush
Eagle
What will happen to the rat population if wolves and eagles are eliminated from the ecosystem?
decrease
stay the same
increase
Why is biodiversity important to ecosystems?
It helps ecosystems survive sudden changes
It maintains balance
It provides multiple relationships
It allows all organisms to rapidly reproduce
What do the arrows represent?
energy loss
energy transfer
decomposition
photosynthesis
What is an adaptation for a desert?
fur
nocturnal
large leaves
losing leaves
What is an adaptation for a tropical rain forest?
fur
nocturnal
large leaves
losing leaves
What is a plant adaptation for a temperate deciduous forest?
fur
nocturnal
large leaves
losing leaves
What is an adaptation for the tundra?
fur
nocturnal
large leaves
losing leaves
Why are bacteria important to the nitrogen cycle?
nitrogen fixation
denitrification
nitrification
decomposition
