The belief that species do not change but are the same as when first created is known as
a. fixity of species.
b. the Great Chain of Being.
c. heliocentric.
d. uniformitarianism.
e. natural selections.
Question 2
In Europe during the Middle Ages, it was believed that
a. all species had evolved from a common ancestor.
b. evolution was the result of natural selection acting upon genetic variation.
c. all forms were created by God and did not change over time.
d. most species had become extinct over time.
e. life was created slowly, over millions of years.
The evolution of orthologs: homologous genes from different species.
Extinction of species in the past.
new species of nudibranch (also known as a sea slug)
Common Shelduck (Tadorna tadorna) is a waterfowl species shelduck genus Tadorna - Breeding male
Andy Warhol, San Francisco Silverspot, from the series Endangered Species
Demographic change and the effect on people social, and economic life