Lesson 4.1 : Artificial and Natural Selection Flashcards
group of all individuals belonging to a species that live in a particular area and interbreed with one another to form an offspring
Population
transformation of species that happens through time
Evolution
series of changes in the genetics and physical traits which often lead to the emergence of new species
Speciation
traits developed for the survival of the organism / process of acquiring these traits
Adaptation
the set of all genes in a population
Gene Pool
individual organisms have favorable traits that lead to greater fitness and reproductive success compared to those that do not have the trait
Natural Selection
the capacity of an organism to survive and live for a longer period of time for it to be able to reach maturity
Fitness
What is the importance of Natural Selection?
deal with changes in the environment = capture food effectively and escape predators = higher chances of survival of the species
Natural Selection and Changes in Population
● natural selection = genetic variations in a population = evolutionary event
● evolution can only occur if the selected traits have been passed on from parents to several generations of their offspring, having favorable or advantageous traits
process of selecting plants or animal individuals for breeding
Artificial Selection
Importance of Artificial Selection
primary principle behind selective breeding used for producing new varieties of plants and animals = higher production in any plant or animal derived products
Artificial Selection and Changes in Population
● evolutionary role of domesticated animals is faster compared to those species experiencing natural selection
● artificial selected traits depend on what the person breeding the plant or animal wants
● downside ; morphological abnormalities / genetic defects
pass on its characteristics through its genes
Reproduction
