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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
decomposer
B
producer
C
consumer
D
omnivore
2) What is the process of breaking food down to yield energy called?
A
nitrogen fixation
B
autotropism
C
cellular respiration
D
photosynthesis
3) What type of organisms get their energy by eating other organisms?
A
only decomposers
B
consumers
C
producers
D
only carnivores
4) What is used to show the many feeding relationships in an ecosystem?
A
trophic levels
B
nutrient cycling diagram
C
food webs
D
food chains
5) Which organism is likely to be in the bottom trophic level in a food chain?
A
alga
B
small shrimp called krill
C
leopard seal
D
killer whale
6) What type of organisms eat both producers and consumers?
A
decomposers
B
decomposers
C
carnivore
D
omnivore
7) Which of the following is a product of photosynthesis?
A
carbon dioxide
B
water
C
carbohydrates
D
fixed nitrogen
8) Which of the follwing statements is not true about consumers?
A
they sometimes eat other consumers
B
they get energy indirectly from the sun
C
they use chemical reactions to make their own food
D
they are called heterotrophs
9) Which of the following is correctly arranged from lowest to highest trophic level?
A
grass, bass, minnow, snake
B
bacteria, eagle, frog, mushroom
C
grass, mouse, snake, eagle
D
algae, deer, hawk, bacteria
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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