Umm whaleee i believe the first “life” which developed is bacteria.
for humans, we are evolved from the great apes. we are called homo sapiens
.75. 75% A because is is a dominant gene. a is 25% because it is recessive, and is mostly overcome by a dominant gene.
They are formed by natural processes like anærobic decomposition. They contain energy from ancient photosynthesis. They can literally be around 650 million years old.