Evolution
The passing on of genes from one generation to the next.
What is inheritance?
When the genetic diversity of a population is greatly reduced due to a large percent of a population dying due to natural disasters.
What is Bottleneck effect?
The hip bones of a dolphin and the tailbone of a human are examples
What are Vestigial Structures?
The ability of an organism to survive and reproduce in its environment.
What is Evolutionary Fitness?
A theory (explanation) supported by evidence for how populations change over time
What is evolution?
The variety of dog and cat breeds that we have today are a product of _________ _____________.
What is Artificial Selection?
A variation in an organism that helps it survive
What is Advantageous trait/ adaptation?
An example of a structure that is homologous to a Human's arm?
What is a Dog’s paw, bat wing, whale flipper
Who developed the theory of Evolution by Natural selection?
Charles Darwin
The movement of genes between separate populations within a species.
What is Gene Flow?
When a small section of a population is separated from the main population.
What is a Founders effect ?
When two members of the same species have slightly different physical traits from each other.
Bunnies with white fur, or bunnies with no fur.
What is Genetic Variation?
The change in allele frequencies within a population due to chance events.
What is Genetic Drift?
Which type of population will be most vulnerable to genetic drift?
What is a Small Population?
Two organisms share a large amount of similar DNA will be _________________ ________________
What is closely related ?
Explain why genetic diversity is important in a population.
It allows a population to adapt to environmental changes?
All living things evolved from a __________________ ____________
What is a Common Ancestor?
The flashy feathers of a bird of paradise are seen as attractive to females of those species, increasing the chances for the males to reproduce.
What is Sexual Selection?
A population of frogs has variation in the length of their legs. Some frogs have short legs, and some frogs have long legs. A new predators moves into the area where this population lives. This is faster than some, but not all of the frogs. How will this population of frogs change over time?
What is an increase in the number of long legged frogs, and a decrease in short legged frogs?
In embryology, the embryos of multiple species are very similar to each other. This shows that these species share a __________ __________
What is a common ancestor?
What are some sources of genetic variation? Where do NEW traits come from?
What is Mutation?
What is Crossing Over?