natural selection? Flashcards
What is natural selection?
Process in which species naturally produce and pass on favorable traits to their off springs to make them more suited to their environment. This process is effected by the environment.
Who proposed the theory?
Charles Darwin
Example
The resistance of bacteria to medicine. Scientists believe that over time medicine loses it’s ability to kill bacteria as it evolves. it how an organism work. If body has been injected with medicine a small population survives. Over time the small population of the bacteria survives and mutates and reproduces again. It passes on the traits of resistance to it’s offspring’s making them resistant.
Example 2
Insects to pesticides. Once a plant have been sprayed with pesticides a small population survives. Over time the small population of the insect survives and mutates and reproduces again. It passes on the traits of resistance to it’s offspring’s making them resistant.