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Energy Flow In Ecosystems
Test Description: Students will reveiw energy flow in ecosystems.
Instructions: Answer all questions to get your test result.
1) What term is used to describe an organism that makes its own food
A
consumer
B
decomposer
C
producer
D
omnivore
2) What is the process of breaking food down to yield energy called?
A
photosynthesis
B
autotropism
C
nitrogen fixation
D
cellular respiration
3) What type of organisms get their energy by eating other organisms?
A
consumers
B
producers
C
only carnivores
D
only decomposers
4) What is used to show the many feeding relationships in an ecosystem?
A
food chains
B
trophic levels
C
food webs
D
nutrient cycling diagram
5) Which organism is likely to be in the bottom trophic level in a food chain?
A
alga
B
leopard seal
C
killer whale
D
small shrimp called krill
6) What type of organisms eat both producers and consumers?
A
omnivore
B
decomposers
C
decomposers
D
carnivore
7) Which of the following is a product of photosynthesis?
A
fixed nitrogen
B
water
C
carbohydrates
D
carbon dioxide
8) Which of the follwing statements is not true about consumers?
A
they sometimes eat other consumers
B
they are called heterotrophs
C
they get energy indirectly from the sun
D
they use chemical reactions to make their own food
9) Which of the following is correctly arranged from lowest to highest trophic level?
A
grass, bass, minnow, snake
B
algae, deer, hawk, bacteria
C
bacteria, eagle, frog, mushroom
D
grass, mouse, snake, eagle
10) What is the source of energy for some deep sea communities?
A
the chemical, hydrogen sulfide
B
the sun
C
fixed nitrogen
D
carbon sinks
*select an answer for all questions
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