Question

Part B) Multiple choice

1. In the traditional sense, the __________ spoke to the fact that ocean's ratio of 16:1 (N to P) corresponds that seen in the marine phytoplankton, reflecting the importance of microorganismal nutrient cycling in this widespread ecosystem and the fact that microbial growth can be limited by a nutrient like __________.

A. arrigo ratio; carbon B.arrigo ratio; iron C.redfield ratio; nitrogen D.redfield ratio; phosphorus

2. A free-floating biofilm is termed a:

A. colony B.drift C.mat D.pellicle

3. _______________ is a metabolic process whereby ammonia is converted to N2 anaerobically that is important, and previously unknown, part of marine N cycling carried out by Planctomyces.

A. Anammox B.nitrogen respiration C.nitrogen reduction D.nitrogen oxidation

Answer 1

In a traditional sense, the redfield ratio spoke to the fact that ocean's ratio of 16:1
Microbial growth can be limited by a nutrient like phosphorus

A free floating biofilm is termed as microbial mat.
Bacteria in a mat are sticked together by a glue sticky substance.
Option c is the answer

Annamox is a metabolic processe where by ammonia is converted to nitrogen anerobically which
is a part of marine N cycling carried out by planctomyces.
Option a is the answer