Artificial Selection
The way organisms have changed over time due to human influence and control
Artificial selection
A process of organisms developing and changing from earlier forms throughout history.
evolution
when environment influences distribution of trait variations within a population over generations.
natural selection
example of variations
eye color, height, weight, hair color, etc.
Differences between gene modification and selective breeding.
Gene modification: altering already made DNA
Selective breeding: Made or bred for specific traits
Examples of artificial selection
breeds of dogs
different versions of a trait within a species
Variations
Examples of natural selection
Darwin's Finches or peppered moths
Example of adaptations
growing spines, long necks, heavy fur, etc.
A body structure that's similar in structure, different in functions
homologous structure
If you wanted to increase milk production, how would you pick its parents?
When organisms are purposely selected to breed for a desired trait.
selective breeding
If the darker peppered moths were trying to hide from a predator, would they hide in a cave or into a plant?
Cave
example of gene modification
The glowing cats
A body structure that is similar in functions and different in structure.
Analogous structure
Differences between vestigial structures and artificial selection
Artificial selection: chooses wanted traits
Vestigial structures: traits that have been lost through evolution
Process of changing DNA in an organism by adding wanted gene or ridding of an unwanted one.
Gene modification
What natural selection took place on the Galapagos islands, studied by Darwin?
Different types of beak shapes on birds
example of selective breeding
Making plants/crops bigger, making cow produce more milk, etc.
Biological feature that has lost its function through evolution
Vestigial structure
In order to make sure that your future puppy has floppy ears what would you do?
Put 2 dogs with floppy ears together for the best chances and results.
when traits that are beneficial for survival in a particular environment become more common in population over generations
adaptations
Why do you think that animal fossils differ in looks to the animals of today? (think back to penguin section)
evolution
Example of homologous and analogous structures
Whale, bird, monkey, dog, etc.
Common Ancestor
organism that is shared by 2 or more common desendants.