Age only matters if you're cheese
This is the largest chunk of geological time.
What is an eon?
These scientists study fossils.
Who are paleontologists?
Give an example of evidence that can support the theory of evolution.
What are fossils? Embryology, fossil record
Write your own definition of natural selection.
More organisms with the desired traits will live from generation to generation.
The process of nature “choosing” which organisms live or die based on their adaptations.
This diagram shows evolutionary relationships between different species over time.
What is a cladogram?
This is the gradual change of a species over time.
What is evolution?
Name one way these scientists determine the relative age of fossils.
What is the Law of Superposition?
What are index fossils?
Organisms that have these live the longest.
What are necessary traits? Beneficial traits
Name two features camels developed to help them adapt to their environment.
Long eyelashes. Fat lump. Wide feet/splayed toes
This is a collective ancestral group that includes both primates and humans.
What are homonids?
This is the shortest amount of geologic time.
What is an epoch?
This kind of test determines how long an organism existed.
What is radiometric dating?
What is carbon dating? Absolute age?
This accidental process can lead to beneficial adaptations that drive evolution.
What are mutations?
What's so special about Darwin's finches on each of the Galapogos Islands?
Each species developed specialized features based on their food source. Different beak shapes
Name two ways homonid skulls changed over time.
Jaw became smaller. Different and smaller teeth. Flatter forehead. Spinal cord moved to back of skull.
This determines a fossil's age by measuring the decay of radioactive elements.
What is absolute age?
This tells scientists the kinds of organisms that lived by layers of sediment and sequence of deposition.
What is the fossil record?
What is one observation we noticed from the developing embryos? (just write the observation)
Different species have similar structures.
Why did the wooly mammoth become extinct?
When the climate changed, the animal's physical traits no longer fit with the environment, causing population decline.
This is what an elephant and an elephant shrew (like a mouse) have in common.
What are genetic similarities?
Being healthy and having the best traits that fit with the environment is called this.
What is "survival of the fittest"?
Dinosaur footprints would be an example of which kind of fossil?
What are trace fossils?
This is the idea that all animal species share a genetic link that can be traced back to a...
Who is our common ancestor?
Complete this sentence: Natural selection favors those organisms that...
adapt quickly to environmental changes
have traits that help them to survive
can reproduce more than others
How does our lab about picking the color dots relate to the idea of natural selection?
Animals that can camouflage have better chances of survival.