Multiple Choice
Organisms that must rely on complex, high-energy molecules produced by other organisms for survival are:
A) heterotrophs.
B) producers.
C) autotrophs.
D) denitrifying bacteria.
E) cyanobacteria.
Correct Answer:

Verified
Correct Answer:
Verified
Q43: The first trophic level of an ecosystem
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
Q49: One of the largest reservoirs for phosphorus
Q50: Many climatologists blame the recent extremes in
Q51: Which of the following components is NOT
Q52: Detritus feeders remove nutrients from the food
Q71: Explain why decomposers and detritus feeders are
Q74: What would happen to an ecosystem if