The total amount of living tissue within a given trophic level is called the
A) organic mass.
B) trophic mass.
C) energy mass.
D) biomass.
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Q3: The simplest grouping of more than one
Q4: Plants are
A)producers.
B)consumers.
C)herbivores.
D)omnivores.
Q5: An organism that uses energy to produce
Q6: Organisms that obtain nutrients by breaking down
Q7: All the interconnected feeding relationships in an
Q9: What is an ecological model of the
Q10: What is the term for each step
Q11: A bird stalks, kills, and then eats
Q12: A snake that eats a frog that
Q13: The trophic levels in Figure 3-2 illustrate
A)the
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