what is nitrogen fixation and its importance to life on Earth. Recognize the importance of Azospirillum , Rhizobium, Nitrobacter, and Nitosomonas to...

1. what is nitrogen fixation and its importance to life on Earth. Recognize the importance of Azospirillum, Rhizobium, Nitrobacter, and Nitosomonas to agriculture. Contrast these bacteria to Agrobacterium.
2. For each phylum , state any defining characteristics and give an example of a member of each phylum.
3. List the kinds/groups of bacteria which: a. Form endospores

b. Produce heterocysts

c. Have mycolic acid

d. Produce fruiting bodies and have gliding mobility

d. Form spores at the end of filaments e. Have an axial filament

f. Prey on other bacteria

g. Have no cell wall