Which of the following definitions most accurately describes a species?
The process of natural selection is outlined below. Fill in the blanks in the following statements.
Populations naturally show in their characteristics.
conditions in an area change causing more competition between individuals.
By chance, some individuals are better for this change and survive.
The survivors reproduce and pass on these to their offspring.
Which scientist proposed the idea that organisms evolved certain features by using them more throughout their lifetime, also known as acquired characteristics?