Question

Scientists in the nineteenth century who believed that species had not been created once and for all, but had changed over time were called:

Question 5 options:

1)	introspectionists.

2)	structuralists.

3)	evolutionists.

4)	behaviorists.

Answer 1

Answer-3)evolutionists.

Explaination-Darwin(1809-1882)'s observed the particular geographical distribution of the diversity of plants and animals around the globe led him to question the assumption that species were immutable, established by a single act of creation.  Life had to survive in new conditions. H also explained that species ,like the Earth itsel,f were changing.The main principles ,he presented were:Adaptations and natural selection.So, the idea of evolution slowly began to take shape in his mind. And that is why the scientists who was involved in bringing evolution in the 19th century regarding the generation of species were called evolutionists.