This study guide covers energy flow in ecosystems, starting with the sun as the primary source. It explains trophic levels (autotrophs and heterotrophs), energy loss as heat, and net gain/loss in organisms. It also discusses endotherms vs. ectotherms, metabolic rates, and r/K reproductive strategies. Finally, it explores ecosystem disruptions from changes in energy resources and provides practice questions and exam tips.
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Question 1 of 14
Where does all the energy in most ecosystems originate? ☀️
From chemical reactions in the soil
From the moon's gravitational pull
From the sun
From geothermal vents