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Ecosystems
Test Description: Ecosystems
Instructions: Answer all questions to get your test result.
1) What is at the start of every food chain?
A
Carnivore
B
Consumer
C
Producer
D
Decomposer
2) Ospreys are birds that eat fish. Where would an osprey most likely live?
A
Near a desert
B
Near a praire
C
Near a marsh (near rivers and oceans)
D
Near a forest
3) Bacteria have a special role in an ecosystem. What is that role?
A
Producer
B
Decomposer
C
Consumer
D
Scavenger
4) An owl gets its energy from a mouse it eats. From which food source did the mouse most likely get its energy?
A
Grass
B
Sun
C
Deer
D
Soil
5) Why can different types of organisms live together in the wetlands?
A
Animals can move from one part of the wetlands to another depending on size
B
The wetlands provide a wide variety of breeding and growing areas
C
The wetlands provide different temperatures for different organisms
D
All animals can live in very wet environments
6) What type of organism eats only plants?
A
Omnivore
B
Carnivore
C
Herbivore
7) If the predator population decreases, which will most likely happen to the prey population?
A
It will gradually increase
B
It will die out
C
It will move to another ecosystem
D
It will decrease
8) Which would be most negatively affected if plant eating animals became extinct?
A
Consumers
B
Producers
C
Decomposers
D
Scavengers
9) The rabbit population decreases due to a drought. What will happen to the fox population that eats rabbits?
A
They will increase
B
The will decrease
C
They will remain the same
D
They will move to another ecosystem
10) Which most accurately describes an estuary?
A
Freshwater mixes with saltwater to provide a nutrient rich environment
B
Freshwater mixes with saltwater to provide a nutrient rich environment
C
High salt levels keep the water clear of nutrients and proteins
D
animals and plants compete for food due to pollution from surrounding aras
11) Which statement best describes a pond?
A
Cattail and pond lily grow here
B
Evergreen trees grow here
C
Grasses and wildflowers grow here
D
Coral reefs grow here
12) Which best describes a carnivore?
A
A consumer that eats both plants and animals
B
A consumer that eats only plants
C
A consumer that eats only meat
*select an answer for all questions
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