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Biology
How much energy is available for the next available level as moving upward through the biomass pyramid?
phases of the heart cycle
Homologous pairs of chromosomes align opposite of each other at the equator of a cell during _____.
Which sentence in the proposal argues against recycling?
Which branch of Earth science is most likely to focus on the formation of rocks and minerals?
Most of the phosphorus on earth comes from: 1)water 2)the atmosphere 3)decaying organisms 4)rocks
What types of crust interact at convergent plate boundaries?
What is the role of these bacteria in the nitrogen cycle
Organisms that are the first to move into an area and begin forming soil for an ecosystem are known as A. pioneer species B. hardwood trees C. climax community D. bushes
Match each biodiversity problem with the most appropriate solution
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