humans and the tree of life Flashcards
who is the father of evolution and natural selection
charles darwin
who coined ‘natural selection’ and why
Darwin and Wallace coined ‘natural selection’ as a plausible mechanism for evolution
who invented the theory of evolution
jean baptise lamarck
His theory lacked a plausible mechanism
what did wallace and darwin study
The differential reproductive success of individuals within a population
caused by evolution
what was darwin and wallaces theory
Organisms within a species vary in traits
Some variation is due to genes
Populations have the capacity to over-produce
what were darwin and wallace’s inferences
Inference 1: some survive to reproduce, some don’t
Inference 2: those with higher reproductive success leave more offspring and copies of their genes
is evolution a theory
no
It is a logical and empirical fact
what do scientists mean by ‘theory’
Does evolution by natural selection explain all of our observations about the natural world
did humans evolve from chimps
No
Humans and chimpanzees have a common ancestor
what is descent with modification
Living species are descended from extinct ancestral forms
