selection, adaption, taxonomy Flashcards
definition of genetic diversity
the total number of different alleles in the population
definition of population
A group of individuals of the same species living in the same habitat
definition of niche
the role within the environment
what is the process of natural selection
mutation creates a new allele
better adapted survive and reproduce
pass on the advantageous allele
frequency of allele increases overtime
what is selection
the process which individuals are better adapted to their environment
what is directional selection
the environmental condition changes
phenotype best suited to the conditions = more likely to survive
overtime the mean of the population will move in the direction of these individuals
what is stabilising selection
When the environment remains the same the individuals closest to the mean are favoured
what are anatomical adaptions
physical adaptions
what are behavioural adaptions
changes in behaviour improve the chances of survival
what are physiological adaptions
processes inside an organisms body
definition of species
capable of breeding together and producing fertile offspring
