When you see a common trait in a species that exists in an environment, you can assume . Group of answer choices

The species remains unchanged from it's ancestors.

The trait offers little clues about the evolution of the species.

The trait gave that version of the species a distinct reproductive advantage.

The trait gave the species a competitive advantage over other animals of it's species without the trait.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

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.

to this answer it would be edge enhancement