October 30, 2022
Do you guys still remember the development of a theory in I/GCSE Biology?
Other theories of evolution
- Richard Owen explain similarities between species – suggests god created basic plans that developed in different wa1ys
- Refer to I/GCSE Biology, Lamarck suggested species could change – most scientists believe they remain the same
- Lamarck idea – environment caused changes in species and changes were passed on to offspring
The problem with Darwin’s theory
- Theory rejected – didn’t consider god as creator
- Little evidence for natural selection causing change + creating new species
- Darwin can't explain how CH pass from parent to offspring
The acceptance of Darwin’s theory
- When it comes to I/GCSE Biology, Theory used to make predictions tested scientifically
- Beak size of finches in Galapagos Islands when a drought broke out and harder seeds were produced. Birds who ate the most food and had larger, stronger beaks survived. In years beak size should increase.
That's all~