Evidence of Evolution
Studying this feature of rock layers can be used to determine the relative age of the fossils.
What is depth (or sequence) of the rock layers?
He developed the theory of evolution by natural selection.
Who is Charles Darwin?
It's a characteristic that increases the fitness of an organism within its environment.
What is an adaptation?
When a natural barrier prevents an organism from entering another environment.
What is geographic isolation?
Who was Lamarck?
The most modern and accurate way to determine evolutionary relationships
What is biochemical analysis (DNA or amino acid sequences)?
These are the islands where Darwin began to develop his theory of evolution.
What are the Galapagos Islands?
It's the requirement that must be met to establish that two members belong to the same species.
What are reproduction of fertile offspring?
It's a term that describes the process of a few individuals of a species colonizing a new territory.
What is founder's effect?
Farmers and dog breeders alike have been performing this type of non-natural selection for years.
What is artificial selection?
This type of structure is one that is no longer used, but served a purpose to the ancestors.
What is a vestigial structure?
It's the term that describes an organism's ability to survive and reproduce within its environment.
This type of evolution occurs when two similar organisms develop into two different species
What is divergent evolution?
An example would be when a new mating song causes two birds to no longer mate.
What is behavioral isolation?
Genetic variation stems from what type of molecular event?
What is a (DNA) mutation?
These type of structures show a common ancestor but not a shared function.
What are homologous structures?
Examples of these include food availability and predators. They increase the rate of natural selection.
What are environmental pressures?
It's the gradual process of two dissimilar species become more alike due to their environment.
What is convergent evolution?
Long periods of stability followed by a quick change is known as this.
What is punctuated equilibrium?
This type of genetic drift describes a chance event that drastically reduces the population of an organism.
What is bottleneck effect?
It's the study of the developmental stages of an organism and provides evidence of evolution.
What is embryology?
This is the first step/requirement of natural selection.
What is overproduction ? (organisms will produce more offspring than can survive)
These are three ways in which organisms can become reproductively isolated?
geographic, behavioral, and temporal
Type of selection that favors both extremes of a trait.
What is disruptive selection?
It's the term use for diagrams which depict the relationships between different groups of organisms that show common ancestry.
What is a cladogram?