Give the 2 ways nitrogen can be fixated so plants can use it to grow. I'm in Honors Bio in 9th grade

showing a photograph would make this a hell of alot easier

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: