What scientific evidence has been discovered since darwin’s time that supports evolution by natural selection?.

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.

answer; both surfaces of the membrane are nonpermeable

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.