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,

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )