February 27, 2017

Homework Help: Science asap

Posted by anonymous on Monday, March 17, 2014 at 10:31pm.

Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use?

nitrogen-fixing bacteria
denitrifying bacteria

Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process?

nitrogen fixation
producer uptake of nitrogen
consumer decomposition

Which of the following is carried out by denitrifying bacteria?

break down large, nitrogen-rich molecules to simple molecules
build large, nitrogen-rich molecules from simple molecules
convert biologically useful nitrogen to gaseous nitrogen
convert gaseous nitrogen to biologically useful nitrogen

Which type of organism moves nitrogen from cells of producers back to the soil?

nitrogen-fixing bacteria
denitrifying bacteria

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