Multiple Choice
Biogeochemical cycling ensures that
A) human activity will have no effect on elements, chemical
B) c compounds, and other forms of matter. living organisms will not become limited in any one nutrient. nutrients will be circulated throughout the biosphere.
C) nutrients will be circulated throughout the biosphere.
D) many nutrients will not reach toxic concentrations in the biosphere.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: An organism that uses energy to produce
Q2: A bird stalks, kills, and then eats
Q3: Organisms that obtain nutrients by breaking down
Q5: The total amount of living tissue within
Q6: Only 10 percent of the energy stored
Q7: How is carbon stored in the biosphere?<br>A)in
Q8: What is an ecological model of the
Q9: The trophic levels in Figure 3-2 illustrate<br>A)the
Q10: Which of the following descriptions about the
Q11: What is the term for each step