What do the similarities between the skeletal structures of these three species most likely indicate about their evolutionary history? a. these three species all evolved from a common flying ancestor. b. these three species are distantly related and share a common ancestor. c. these three species are not related and do not share a common ancestor. d. these three species are all descended from the same parent organism.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

i think the answer is 95 hope this