ANSC 1011 Chapter : Evolution
Document Summary
Evolutionary idea: new characters could arise to better adapt animals to their habitats. 1. some species were extinct: there are several basic body plans in earth"s animals, sequences of fossils in the fossil record succeeded each other. He had no evolutionary mechanism as such, but did have an explanation, and his name is still linked to this idea called: Definition: believed that periodic catastrophes had devastated earth"s life. He believed species of animals to be immutable, defined them as "a species comprehends all the individuals which descend from each other, or from a common parentage, and those which resemble them as much as they do each other". Evolutionary mechanism____ lower forms rise in complexity through an unconscious. Inner drive, new structures arise in response to need. Give a simple way to disprove lamarck"s evolutionary idea: Cocker spaniels have had their tails cut off for many generations, but their. Puppies have tails and the tails are not shorter.
