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How do iron levels affect phytoplankton ...

How do iron levels affect phytoplankton population in a marine ecosystem ?

A

Without iron, eukaryotic phytoplankton population fall because they cannot convert atmospheric `N_(2)` to nitrogenous minerals

B

In the presence of too nuch iron, eukaryotic phytoplankton populations fall because they cannot convert atmospheric `N_(2)` to the nitrogenous minerals

C

Iron stimulates the growth of cyanobacteria, which converts atmospheric `N_(2)` to nitrogenous minerals , stimulating the growth of phytoplankton

D

Iron halts the growth of cyanobacteria, which converts atmospheric `N_(2)` to nitrogenous minerals. Therefore, phytoplankton population are limited

Text Solution

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The correct Answer is:
C
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  2. Biological equilibrium is an equilibrium among the:

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  3. Suppose all bacteria and fungi are destroyed. What will happen ?

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  4. The provisioning services of ecosystem are

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  5. The supporting srevices of ecosystem include

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  7. Which of the following is an ecosystem service provided by a natural e...

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  8. The process of mineralisation by microorganisms helps in the relase of

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  9. Which is the most direct way that the carbon present in starch stored ...

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  10. In a particular climatic condition, decomposition rate is slower if de...

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  11. A lake community suddenly suffers from algal blooms. Using the strateg...

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  12. Which one of the following best describes the base of a pyramid of net...

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  13. How do iron levels affect phytoplankton population in a marine ecosyst...

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  14. The diagram shows losses from a rat to the environment Which of t...

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  15. The diagram shows parts of the carbon cycle. Which process conver...

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  17. Which is wrongly matched ?

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  18. Which of the following statement is incorrect regarding ecological pyr...

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  19. Which of the following is most responsible for increasing atmos pheric...

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  20. Which of the following least affects affects succession in a community...

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