Card Set Information
The process of the biological change by which descendants come to differ from their ancestors.
A group of organisms so simular to one another that they can reproduce and have fertile offspring
Traces of organisms that existed in the past
States that natural disasters such as floods and volcanic eruptions have happened often during Earth;s long history
Landforms resulted from slow changes over a long period of time
the theory that states that the geologic processes that shape Earth are uniform through time
The difference in the physical traits of an individual from those of other individuals in the group to which it belongs
A feature that allows an organism to better survive in its environment
The process by which humans change a species by breeding it for certain traits
The ability of a trait to be passed down from one generation to the next
A mechanism by which individuals that have inherited beneficial adaptions produce more offspring on average that do other individuals
All the individuals of a species that live in an area
A measure of the ability to survive and produce more offspring relative to other members of the population in a given environment
The study of the distribution of organisms around the world
Features that are similar in structure but appear in different organisms and have different functions
Structures that perform a similar function but are not similar in orgin
Remnants of organs or structures that has a function in an early ancestor
The study of fossils or extinct organism
The combined genetic information of all members of a particular population is called a(an)________.
The ________ of an allele is the number of times that the allele occurs in a gene pool, compared with the number of times other alleles occur.
A(an) _______ is a trait controlled by a single gene.
_____ are controlled by two or more genes.
for most genes, a gene pool typically contains _____ (amount) alleles.
two or more
What type of natural selection takes place when individuals at the upper and lower ends of the curve have highers fitness than individuals in the middle?
A random change in allele frequency is called ______.
In what type of population is genetic drift most likely to occur?
What is the formation of a new species called?
What occurs when allele frequencies change as a result of the migration of a small subgroup of a population?