A _____ __ ______ has levels which represent the number of each species in a food chain.
pyramid of numbers
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15
A food chain shows the transfer of 1._______ from one organism to the next, beginning with a 2._________, which obtains its energy from the 3. __________.
1. energy / 2.producer / 3. sun
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seesaw
Swap points!
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star
Double points!
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rocket
Go to first place!
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lifesaver
Give 20 points!
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15
A _____ __ ______ has levels which represent the dry weight of species in a food chain.
pyramid of biomass
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15
Define the term POPULATION
A group of organisms of one species, living and interacting in the same area at the same time.
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20
Identify the cycle of the picture and name its 4 main processes.
Water cycle. Processes: Evaporation, Condensation, Precipitation, Transpiration.
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20
Name the 2 processes that ADD nitrates to the soil
