Which type of organism in this lab can get its nitrogen from nitrogen fixation (converting N2 gas into ammonia), allowing it to grow even if easily used forms of nitrogen are not available in its water or food

The correct answer cyanobacteria

Explanation:

The Cyanobacteria or blue green algae are the potent nitrogen fixers as they convert nitrogen gas into ammonia. Other options like Daphnia and Bosmina are water fleas that cannot fix nitrogen and trouts are the fishes that don't fix nitrogen. Hence, the correct option is,

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'