Question

Multiple Choice:

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

A. Nitrogen-Fixing Bacteria
B. Denitrifying Bacteria
C. Decomposers
D. Producers


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

A. Denitrification
B. Nitrogen Fixation
C. Producer Uptake Of Nitrogen
D. Consumer Decomposition


3. Which Of The Following is carried out by denitrifying bacteria?

A. Break down large, nitrogen-rich molecules to simple molecules
B. Build large, nitrogen-rich molecules from simple molecules
C. Convert biologically useful nitrogen to gaseous nitrogen
D. Convert gaseous nitrogen to biologically useful nitrogen


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

A. Decomposers
B. Consumers
C. Nitrogen-Fixing Bacteria
D. Denitrifying Bacteria


5. What would be the consequence of an ecosystem that had no nitrogen-fixing bacteria?

A. Nitrogen from decomposing animals would never be returned to the soil
B. Decomposers would not be able to break down the nitrogen present in plants they feed
C. Plants would have to rely on biologically available nitrogen present in the soil.
D. Consumers would not survive since they would have no way to obtain the nitrogen they need.



My Answers:

1. A (nitrogen-fixing bacteria)
2. ??? (Im Sorry This One Is The One I Really Cant Figure out)
3. C (convert biologically useful nitrogen to gaseous nitrogen)
4. A (decomposers)
5. C (Plants would have to rely on biologically available nitrogen present in the soil)


If You Would Pllease be kind Enough To Tell Me What You Think. It WOuld Mean The world To Me :P LOL

Thanks Again <3 Abby

Answer 1

OOPS! Typo Sorry. Please*