The First Trophic Level of an Ecosystem Consists Of

Q38: Organisms that produce their own food from

Q39: Horses and cows are primary consumers. True

Q40: A major ecological concern, the greenhouse effect,

Q41: In open-water marine ecosystems, the _ occupy

Q44: Deforestation decreases the levels of greenhouse gases

Q45: Carnivores are usually:<br>A)secondary consumers.<br>B)primary consumers.<br>C)autotrophs.<br>D)detritus consumers.<br>E)consumer producers.

Q47: Sulfur dioxide is a natural product of

Q47: Organisms that must rely on complex, high-energy

Q71: Explain why decomposers and detritus feeders are

Q74: What would happen to an ecosystem if