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WorksheetsBiosphere/Ecology Review
Total questions: 50
Worksheet time: 50mins
Name
Class
Date
1.
All ecosystems that have a similar climate and similar organisms belong to the same biome?
a)
True
b)
False
2.
All ecosystems have the same general roles that living things fill?
a)
True
b)
False
3.
Scavengers are animals that kill and eat other animals?
a)
True
b)
False
4.
Energy flows through and ecosystem in just one direction?
a)
True
b)
False
5.
Each niche in an ecosystem can be inhabited by only one species?
a)
True
b)
False
6.
Species that are parasites usually harm their host species?
a)
True
b)
False
7.
Fungi and bacteria are decomposers that help recycle nutrients back into an ecosystem?
a)
True
b)
False
8.
Matter flows through and ecosystem in exactly the same way as energy?
a)
True
b)
False
9.
Organisms that are producers include:
a)
Plants
b)
Bacteria
c)
Phytoplankton
d)
All of the above
10.
Consumers that eat only producers are called:
a)
Omnivores
b)
Carnivores
c)
Herbivores
d)
Predators
11.
The first trophic level in an ecosystem is made up only of:
a)
Primary Consumers
b)
Producers
c)
Community
d)
Ecosystems
12.
Organisms that can interbreed and produce fertile offspring belong to the same:
a)
Species
b)
Population
c)
Community
d)
Ecosystem
13.
Abiotic factors in a forest ecosystem include:
a)
Trees
b)
Nutrients
c)
Sunlight
d)
2 of the above
14.
Organisms that break down dead organisms and return the nutrients to the ecosystem are classified as:
a)
Prey
b)
Predators
c)
Scavengers
d)
Decomposers
15.
What percentage of energy at one trophic level is available to the higher trophic level?
a)
10 percent
b)
25 percent
c)
50 percent
d)
90 percent
16.
Relationship between species that try to use the same resources.
a)
Commensalism
b)
Habitat
c)
Competition
d)
NIche
17.
Way a species makes a living
a)
Niche
b)
Symbiosis
c)
Mutualism
d)
Competition
18.
Relationship between species in which one species benefits and the other species is not harmed
a)
Commensalism
b)
Habitat
c)
Parasitism
d)
Symbiosis
19.
Place where an organism lives
a)
Niche
b)
Competition
c)
Mutualism
d)
Habitat
20.
Relationship between species in which both species benefit
a)
Mutualism
b)
Copetition
c)
Niche
d)
Parasitism
21.
Any relationship between two species that live in close association with each other.
a)
Symbiosis
b)
Parasitism
c)
Habitat
d)
Commensalism
22.
Relationship between species in which one species benefits and the other species is harmed.
a)
Commensalism
b)
Mutualism
c)
Symbiosis
d)
Parasitism
23.
Carbon is constantly recycled through ecosystems?
a)
True
b)
False
24.
Plants take in carbon dioxide gas in the process as respiration?
a)
True
b)
False
25.
Fossil Fuels are reservoirs for carbon?
a)
True
b)
False
26.
A living forest is a contributor of increased levels of carbon dioxide in our atmosphere?
a)
True
b)
False
27.
Greenhouse gases increases has contributed to global warming?
a)
True
b)
False
28.
Nitrogen is the second most abundant gas in the atmosphere after oxygen?
a)
True
b)
False
29.
Decomposers do not play a key role in making nutrients available to organisms?
a)
True
b)
False
30.
Carbon reservoirs include:
a)
Forests
b)
Fossil Fuels
c)
Oceans
d)
All of the above
31.
A population has exceeded its carrying capacity if it uses up resources faster than they can be replenished
a)
True
b)
False
32.
The same factors limit human population growth all over the world.
a)
True
b)
False
33.
The rate at which the human population is growing is still increasing.
a)
True
b)
False
34.
Generally when a population reached its carrying capacity the population:
a)
Stops Growing
b)
Expands it habitat
c)
Quickly goes extinct
d)
No longer has limiting factors
35.
Goals of sustainable development include:
a)
Protecting the environment
b)
Helping people get out of poverty
c)
Using resources only as quickly as they are replaced
d)
All of the above
36.
Which of the following statements about carrying capacity is (are) true?
a)
The carrying capacity of a population never changes.
b)
The carrying capacity is the same for all populations in a habitat.
c)
The carrying capacity depends on biotic and abiotic factors
d)
All of the above
37.
Factor that determines the carrying capacity for a species.
a)
Limiting Factor
b)
Pesticide
c)
Invasive Species
d)
Sustainable Development
38.
Chemical used to kill organisms that harm plants.
a)
Invasive species
b)
Limiting Factor
c)
Pesticide
d)
Overpopulation
39.
Use of more resources than needed or than can be sustained in the long term.
a)
Pesticide
b)
Limiting Factor
c)
Overpopulation
d)
Over Consumption
40.
Use of resources in ways that do not deplete them or harm the environment
a)
Sustainable Development
b)
Carrying Capacity
c)
Overpopulation
d)
Invasive Species
41.
Maximum population size of a species that a habitat can support
a)
Limiting Factor
b)
Invasive Species
c)
Carrying Capacity
d)
Pesticide
42.
Organisms that moves into a new environment where it may harm native species.
a)
Invasive Species
b)
Limiting Factor
c)
Over Consumption
d)
Pesticide
43.
Situation in which a population exceeds its carrying capacity
a)
Overpopulation
b)
Carrying Capacity
c)
Pesticide
d)
Invasive Species
44.
Which of the following describes estuaries?
a)
Where a river meets and ocean
b)
Rich in nutrients
c)
Where freshwater mixes with saltwater
d)
All of the above
45.
Seashores intertidal zones are:
a)
Covered by water at high tide and exposed to air at low tide
b)
Covered by water at low tide and exposed to air at high tide
c)
Always covered by water from the ocean
d)
Never covered by water from the ocean
46.
Open oceans are divided into what zones?
a)
Lighted
b)
Dark
c)
Lighted and dark
d)
Neither lighted or dark
47.
95% of Earth’s water contains ____ concentration of salt or high salinity?
a)
No
b)
Low
c)
Medium
d)
High
48.
Regions that are wet all or most of the year.
a)
Tundra
b)
Taiga
c)
Wetlands
d)
Grasslands
49.
Desert biomes are the driest biomes, supports little life and temperatures ___________?
a)
Vary from hot to cold
b)
Are always hot
c)
Are always cold
d)
Never change
50.
Coral reefs are diverse and fragile ecosystems formed from:
a)
Water Pollution
b)
Carbon Dioxide
c)
Air bubble releases
d)
Calcium carbonate
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