When describing food webs, the term "everything is connected to everything" is fitting. Why?
A) Decomposers break down organic material from all organisms.
B) Animals in an ecosystem share resources.
C) Producers are always at the first trophic level.
D) Each species in a food web is typically two links away from all other species.
E) Extinction of any species in a food web has a very low potential impact on other species.
Correct Answer:
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Q9: Four of the five answers listed below
Q10: Four of the five answers are consumers
Q11: Energy flow in an ecosystem is _.
A)cyclical
B)one-way
C)two-way
D)reversible
Q12: Oil and natural gas formed over hundreds
Q13: An ecosystem is a community of _
Q15: Which organisms would be part of a
Q16: Four of the five answers listed below
Q17: What is the major reservoir of phosphorus?
A)atmosphere
B)sedimentary
Q18: In ecosystems, primary consumers are _.
A)herbivores
B)carnivores
C)scavengers
D)decomposers
E)detritivores
Q19: How does phosphorus enter the biological portion
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