Answer:
Step-by-step explanation:
Artificial selection can also be called selective breeding it is used by human to identify and select desired traits in an organism.
Selective breeding have been used in improve the performance of our crops this include yield and vigour. Varieties with good yield and vigour are selected and multiply for use.
Natural selection occur when human don't influence selection the adaptive organisms will naturally strive to survive out competing other organism. Nature itself select the good and adaptive ones the weak ones are often outcompete. Natural selection occur mostly in the wild were the environment have not been manipulated the plants and animal strive to survive. The ones who survived are the selected ones by the environment. Some organism naturally provides resistance to some drugs this an example of natural selection this gives the organism a selective advantage over others.