Which of the following is NOT true of ecosystems?
A) Although they may include many different species, many features of ecosystem structure and function are alike.
B) Autotrophs secure energy and nutrients that are then used by heterotrophs.
C) Energy cycles and minerals flow through ecosystems.
D) Many different food chains are represented in most ecosystems.
E) Ecosystems are characterized by relatively few trophic levels.
Correct Answer:
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Q2: If the _ in an ecosystem die,
Q6: The sea level is rising because
A)global air
Q7: The primary consumer is
A)the second link in
Q8: Omnivores feed on
A)animals.
B)plants.
C)fungi.
D)bacteria.
E)any of these.
Q9: Primary carnivores are
A)tertiary consumers in the second
Q11: Nutrient recycling in an ecosystem begins with
Q12: The primary consumers in natural communities are
A)
Q16: The concept of an ecosystem differs from
Q16: A network of interactions that involves the
Q19: Which of the following is NOT dependent
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