Hearing gives an animal advantages such as being able to listen out for predators, so the animal can run away. The hearing can aid the animal when hunting for other animals, because it can stay still and wait for the right timing to attack, etc.
Wegener<span> was the first to use the phrase "continental drift" (1912, 1915) (in German "die Verschiebung der Kontinente" – translated into English in 1922) and formally publish the hypothesis that the continents had somehow "drifted" apart.....</span>
Natural selection acts directly on those gene variations for traits or phenotypes.
The phenotype of an organism is the physical characteristic and is determined by the organism's genotype. Natural selection selects the genes that produce a certain phenotype by providing suitable conditions for a certain phenotype.
