Evolution is change in the heritable characteristics of biological populations over
successive ..... For example, according to the phenotype-first
May 13, 2015
"THE AFFINITIES of all the beings of the same class have sometimes been represented by a great tree. I believe this simile largely speaks the truth. The green ...
A species is a population of organisms that interbreeds and has fertile offspring. •. Living organisms have descended with modifications from species that lived ...
A secondary school revision resource for OCR GCSE 21st Century Science
about nerves, hormones and the
Apr 29, 2016
Most educated people in Europe and the Americas during the 19th century had
their first full exposure to the concept of
See video following in the footsteps of Darwin and find out more about the OU's
courses exploring the science behind his