[ 233 ] Life Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Energy flows in an ecosystem through a chain of events called the food chain. Place the following members of the food chain in order of most energy to least energy. • decomposers • producers • secondary consumers • omnivores • primary consumers Place the listed organisms into the correct category of the food chain. Producers Primary consumers Secondary consumers Omnivores Decomposers • mouse • cow • snake • ant • grasshopper • hawk • mushroom • fern • human • bacteria • grass • cougar