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Ecosystems
Test Description: Ecosystems and the Interaction of organisms with each other and their environment
Instructions: Answer all questions to get your test result.
1) Which ecosystem has the greatest biodiversity?
A
grassland
B
lake
C
ocean
D
desert
2) Which best explains why tropical rainforests always have warm temperatures?
A
They are near the Equator.
B
They are at low altitudes.
C
A canopy of trees traps the heat.
D
The many animals produce heat.
3) Ospreys are birds that eat fish. Where would an osprey most likely live?
A
near a marsh
B
near a prairie
C
near a desert
D
near a forest
4) Which are the most common ecosystems in North Carolina?
A
grassland, ocean, temperate rainforest
B
estuary, grassland, rainforest
C
deciduous forest, estuary, ocean
D
deciduous forest, desert, ocean
5) Which of these ecosystems supports the widest variety of life?
A
deciduous forest
B
desert
C
grassland
D
estuary
6) Which is a difference between a tropical rainforest and a deciduous forest?
A
A tropical rainforest has a greater number of rivers and lakes than a deciduous forest.
B
A tropical rainforest receives a greater annual precipitation than a deciduous forest.
C
A tropical rainforest receives more sunlight than a deciduous forest.
D
A tropical rainforest is smaller in size than a deciduous forest.
7) Which could be a challenge for a small animal living in a grassland ecosystem?
A
The flat terrain makes it easy for predators to spot prey.
B
The high amounts of precipitation create excess water resources.
C
The frozen ground is too hard to serve as shelter.
D
The extreme temperatures require thick skin and heavy fur.
8) Bacteria are released into the Gulf of Mexico to help clean up an oil spill. What role do the bacteria serve in the marine ecosystem?
A
producers
B
consumers
C
decomposers
D
predators
9) Which organism receives its energy from the sun?
A
tree
B
cat
C
bee
D
grasshopper
10) Which organisms use energy to make nutrients for plants?
A
producers
B
carnivores
C
decomposers
D
herbivores
11) Which is the term for secondary consumers in an ecosystem?
A
herbivore
B
producer
C
omnivore
D
carnivore
12) Which organism is a decomposer?
A
spider
B
fungi
C
sunflower
D
ladybug
13) In a forest ecosystem, which has the most direct access to the main energy source?
A
decomposer
B
producer
C
scavenger
D
consumer
14) Which group of organisms make up the largest part of a food chain?
A
carnivores
B
producers
C
decomposers
D
consumers
15) Which consumer in a grassland ecosystem would be considered both predator and prey?
A
a snake, because it eats mice and is eaten by hawks
B
an earthworm, because it eats dead animals and is eaten by birds
C
a rabbit, because it eats snakes and is eaten by deer
D
a grasshopper, because it eats grass and is eaten by birds
16) Which is a group of producers that could be found in a forest?
A
deer, squirrels, and mice
B
lizards, scorpions, and rodents
C
cacti, shrubs, and yucca
D
trees, grasses, and vines
17) Which describes a decomposer?
A
an organism that eats only plants
B
an organism that makes its own food
C
an organism that breaks down dead matter
D
an organism that receives energy from the sun
18) Which statement best describes producers?
A
Producers in both water and land ecosystems are mainly trees.
B
Producers in land ecosystems are mainly grasses.
C
Producers in both water and land ecosystems are mainly green plants.
D
Producers in water ecosystems are mainly algae.
19) Which would most likely increase the number of squirrels living in an area?
A
cutting down trees that serve as habitats for squirrels
B
removing all of the food sources for squirrels from the area
C
planting trees that produce nuts squirrels do not eat
D
reducing the number of animals that hunt and kill squirrels
20) Which would be the most likely result if all the producers in an area were destroyed?
A
Different types of animals would move into the area.
B
The number of consumers would greatly decrease.
C
The number of all of the organisms in the area would increase.
D
Herbivores in the area would become carnivores in order to survive.
*select an answer for all questions
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