The options that are incorrect are A) representation of a complete set of a cell's polypeptides, B) the complete set of an organism's polypeptides, C) the complete set of a species' polypeptides, and D) karyotype, which makes E) the complete set of an organism's genes the correct answer to what defines a genome.
Evolution. over time animals have evolved unique traits that make them distinct from other species.
The answer is 'Cambrian' explosion. This took place approximately 541 million years ago. 'Explosion' refers to the evolution of a large range of new major animal phyla. Scientists know this by the large number of diverse fossils from this period. Prior to this period, organisms were single-celled, but over the Cambrian Explosion, lasting about 80 million years, life forms diversified rapidly to resemble the life forms existing today.
The process is known as the greenhouse gasses effect
