Terms Flashcards
What is a Homologus feature?
Structures with common evolutionary origin but has a different function
What is a analogous feature?
Structures with different origin but the same function
What is a vestigial feature?
Features that no longer serve a purpose that the species uses
What is Natural selection?
Natural selection is the way in which nature favours the reproductive success in a organism
What is Adaptation?
Adaptation is a feature that makes a species well suited for survival and reproductive success
What is Adaptive Radiation?
Adaptive Radiation is when a single species evolves into a number of distinct but closely related species.
What is a gene pool?
This is where all of the alleles are contained within a species or population
What is Directional selection?
It the favouring of the most extreme trait
What is Stabilizing selection?
Average phenotype of a population is favoured
What is Disruptive selection?
When two opposite extreme alleles are favoured in a organism
What is Sexual Selection?
Sexual selection is favouring any traits that enhances mating success of an individual
What is Female Mating choice?
Female Mating choice is when a male enhances his colour or sound to attract a female to mate with
What is Male Vs Male Competition?
Male Vs Male Competition is when males have evolved a large body size and physical attributes to be able to fight off another male
What are the 5 mass extinctions
- Ice age
- Volcanic activity/Acid rain
- Volcanic activity
- Volcanic activity
- Asteroid impact
Who’s the founder of the theory of Natural Selection
Charles Darwin
What is theory of Catastrophism
Catastrophes destroyed sets of species and new sets of species would take there p;lace
