20 points!

examine the differences between the common ancestor’s original gene and the genomes of the existing species. how can these changes affect the development of the protein in the descendant species?

The advantageous proteins that build larger molecules help prolong life life. If there is better survival and reproduction, it is more likely to pass onto the next generation. If it continues to be advantageous, the sequence of them change to support the life of the current species.

Explanation:I did this on edmentum and got it right

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.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it