Introduction
The famous scientist who gave us the theory of natural selection
Who is Charles Darwin?
what are variations
This structure does not imply an evolutionary relationship
What are analogous structures?
remains of once-living organisms
What are Fossils?
The change of traits in a species over time
What is Evolution?
resource that organisms compete for (3)
What are water, space and mates?
Individuals with “better” traits are more likely to survive, reproduce and pass their traits to offspring. (true or false)
True
structure implies “loss of function” or evolutionary divergence from a species with a past function (that is no longer needed)
What are vestigial structures
what is an ancestor
A favorable trait, which helps an organism survive
What is an adaptation? *
The rate of evolution
What is usually of slow process but can occur quickly aswell
Two major sources of genetic variation
What are Recombination (Sexual Reproduction) and Mutations
Similar structure, different function
What are homologous structures
The Study of unborn organisms in their earliest phase of development.
What is Embryology?
An organism's ability to adapt, survive and reproduce.
What is fitness
An Organism from which all organisms on Earth Descended from
what is a common ancestor
The frequency of advantageous traits in a population of species over time will
increase
Bird wings and butterfly wings are an example of....
What are analogous structures?
the strongest piece of evidence that supports evolution
What are genetic similarities
Principle by which each slight variation [of a trait], if useful, is preserved
Natural Selection
WHat is a trait
Variation is due to differences in
DNA
legs of a horse and wings of a bat are an example
What are Fossils, ancient organism remains, anatomical similarities, genetic similarities, and embryology similarities
A diagram that shows evolutionary relationships between species
What are phylogenetic trees?