Evolution 1
This term refers to the availability of different traits and alleles within a population.
What is variation?
The ability of an individual to survive and reproduce is known as this.
What is fitness?
The principle that all species can be traced back to a common ancestor is known as this.
What is common descent or ancestor?
The area where DNA is located in all cells.
What is the nucleus?
The concept of humans selecting desired traits in species for exploitation is known as this.
What is artificial selection?
Any inherited trait that increases an organism's chance of survival is known as this.
What is an adaptation?
Finding fossils in different rock layers in the same place allows us to do this
What is relative dating?
The shape of DNA.
Spiral staircase.
What is Double Helix?
The concept that members of each species compete regularly for food, space, and other necessities is known as this.
What is the struggle for survival or competition?
The concept that organisms who are the best suited to their environment will be the most successful
What is survival of the fittest?
Speciation requires isolation.
The type of isolation where organisms are in different locations.
What is Geographic Isolation?
Instructions create different proteins which allow our cells to carry out a variety of functions needed to survive.
What is the function of genes?
Change in the gene pool due to a random event, not evolution
What is genetic drift?
Speciation requires isolation.
The type of isolation where organisms reproduce at different times
What is temporal isolation?
The process in which nature determines which individuals/adaptations survive is known as this.
What is natural selection?
What is The Galapagos Islands?
When an error occurs in the replication process it positively impacts the organism's ability to survive and reproduce.
What is a beneficial mutation?
Speciation requires isolation.
The type of isolation where organisms use different mating rituals
What is behavioral isolation?
Structures that have different mature forms but develop from the same embryologic tissues are known as this.
What are homologous structures?
Geologic or behavioral barriers lead to a new species forming over time.
What is speciation?
When an error occurs in the replication process it negatively impacts the organism's ability to survive and reproduce.
What is a harmful mutation?
Different variations of the same gene in a population. Offspring can get two different from their parents.
What is an allele?
Multiple species go extinct from within an environment.
Blending in with a species background often helps to avoid prey, allowing for the species to survive longer than those that can't blend in. Example: Peppered Moth.
What is a camouflage?
In order for evolution to happen, this must exist in a species.
What is variation?
When an error occurs in the replication process it does not impact the organism's ability to survive and reproduce.
What is a neutral mutation?