Which chromosome is abnormal or carries a genetic mutation? a. 13th pair b. 21st pair c. 23rd pair d. 18th pair

its A. that's got to be the easiest one i ever did

The best statement to describes the relationship between evolution and natural selection is natural selection leads to evolution.  

The basic idea of evolution is that species of organism change over time. Evolution occurs through natural selection. Natural selection causes population or species to become adapted to their environments over time. In simple word, natural selection depend on the environment. Species that adapted to the environment will likely to survive and reproduce.  

It was Charles Darwin, a naturalist from Britain, who proposed this evolution idea. This idea was based on his direct observation from his expedition around the globe from 1831 to 1836. Darwin then wrote a controversial book called "On the Origin of Species."  

He was part of a survey expedition carried out by the ship HMS Beagle.  The most popular Darwin's observations during his trips was his observation of the Galápagos Islands. He found that the finches in the Galapagos island are similar to an island nearby but different from the rest of the world. He also observed that each finch species was well-suited for its environment and role.

The difference between selective breeding and natural selection

Natural selection

Charles Darwin's theory about evolution

Keywords: Charles Darwin, evolution, natural selection, HMS Beagle