Evidence of Evolution
Natural Selection
Species
Vocab
Diagrams
100
Which Fossil shown is the oldest? Youngest?
Oldest: Trilobite
Youngest: Fern
100
The theory of natural selection was developed by
Who is Charles Darwin
100
How do we write the scientific name for an organism?
Genus and Species
100
Genetic differences between organisms of the same species.
Variation
100
What trait(s) is/are shared by the leopard and horse?
Hair
200
These are examples of what kind of structures?
Homologous structures.
200
This is the ultimate source of variation for organisms
What is a mutation
200
What is an example of behavioral isolation.
Birds having different mating songs/courtship rituals.
200
Studying developmental stages provides this type of evidence
What is embryology
200
Which number organism is the most recent common ancestor between the bird and snake?
10
300
This type of structure is one that is no longer used, but served a purpose to the ancestors
What is vestigial structure
300
What are four examples of behavioral adaptations?
Migration, hibernation, estivation, classical conditioning, suckling, imprinting, habituation, etc.
300
When a natural barrier prevents an organism from entering another environment, this is called what
What is geographic isolation
300
A new mating song cause two birds to no longer mate. This is called what
What is behavioral isolation
300
Which organism is most closely related to the leopard?
House cat
400
The shark fin, penguin wing and dolphin flipper are said to be what kind of structures?
Analogous structures
400
Why is genetic variation important for natural selection.
-It allows for adaptation to changing environments.
-It allows some individuals to survive and reproduce more successfully than others in a given environment.
400
What are two ways organisms can become isolated?
geographic, temporal, and behavioral
400
a characteristic that allows an organism to fit in better with its environment is called
What is an adaptation
400
What organism is most closely related to the fish?
Frog
500
This type of structure shows a common ancestor but not a shared function
What is homologous structure
500
What are the four principles of Natural Selection?
Variation, Overproduction, Survival of the Fittest, Competition
500
What is the term used for organisms that cannot reproduce or form fertile offspring?
Reproductive Isolation
500
What are the four types of adaptions? give an example of each.
Structural: thorns on a rose
Behavioral: hibernation
Physiological: antibiotic-resistant bacteria
Reproductive: internal fertilization
500
This organism has a vertical tail fin, gill slits behind the mouth, and his tail is half the length of the body.
Thresher Shark