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Food Chains, Foodwebs And Energy Pyramids
Test Description: Flow of energy in ecosystems
Instructions: Answer all questions to get your test result.
1) The producers are very important member of an ecosystem because
A
They are inorganic
B
The eat dead organic matter
C
The consume chemical energy in plants and allow chemical energy to enter the foodchain
D
The convert radient energy to chemical energy so energy can eneter the food chain
2) Secondary consumers are usually identified as either carnivores or Omnivores because
A
Secondary consumers eat primary consumers
B
Secondary consumers eat producers
C
Secondary consumers eat tertiary consumers
D
Secondary consumers recieve the most energy from their food
3) Omnivores are classified as either primary or seconday consumers because
A
They eat meat
B
The decompose organic matter
C
They eat both plants and meat
D
They eat plants
4) Tetiary consumers ...
A
Recieve the most energy from their food
B
Undergo photosynthesis
C
receive same amount of energy from their food as other consumer levels
D
Receive the least energy from their food
5) How much energy is released as heat at each level of an energy pyramid
A
10%
B
90%
C
50%
D
100%
6) What is the energy trasfer that would occur if an organism eats a plant and stores the sugars as fats
A
Radiant to chemical
B
Chemcial to thermal
C
radiant to kinetic
D
Chemical to chemical
7) Decomposers are important because they
A
Hunt tertiary consumers
B
take nutrients from the soil
C
Create energy through photossynthesis
D
Breakdown organic matter
8) Heterotrophs are organisms that
A
eat other organisms
B
eat producers
C
Create glucose through photosynthesis
D
Eat meat
9) The arrows in a foodchain or food web represent
A
flow of food
B
predators
C
flow of energy
D
prey
10) 90% of energy is release as _____________at each level of the energy pyramid
A
Radiant
B
Thermal
C
Chemical
D
Kinetic
*select an answer for all questions
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