Natural Selection Flashcards
Lamarck Evolution Theory
If an animal or plant changes during its lifetime to adapt to its environment, then those changes would be passes on to its offspring.
Darwin’s Evolutionary theory
Natural selection
Wallace’s Evolutionary Theory
Sent Darwin a letter of his own theory of natural selection, they jointly published Natural selection together
Who are more likey to produce more offspring?
Individuals that are better adapted
What can natural selection do?
Create new species
What is gene pool?
All the genes and alleles that exist in a population.
What is genetic divergence?
Due to changes in a small number of genes in a species, resulting in speciation.
What is Homo Sapiens?
Modern humans
What changes are made during the human evolution?
Change to the skull, skeleton
What happened to the skull during human evolution?
Larger brain case
Smaller brow ridge
Smaller jaw
Smaller teeth
Smaller nose
What are the changes to skeletons during human evolution?
Now:
Skull attaches inferiorly
SPine is S shaped
Arms shorter than legs
Bowl-shaped pelvis
Femur angled in
What is cultural evolution?
Communication skills – has survival advantage, passed on their traits for communication to their offspring.
