Fossil Evidence
What do fossils show that supports the theory of evolution?
They show how organisms have changed over time and reveal relationships between species.
What is the process by which organisms with favorable traits survive and reproduce?
Natural Selection
What type of reproduction creates the most variation?
Sexual Reproduction
What happens when new evidence contradicts a theory?
Theory is MODIFIED
What two parts make up a scientific name
Genus and Species
Where are the oldest fossils found—top or bottom rock layers?
Bottom
Why did dark-colored moths become more common during the Industrial Revolution?
They blended in better with soot-covered trees, avoiding predators.
Why is genetic variation important for a population?
It increases the chance that some individuals will survive environmental changes.
What is empirical evidence?
Data gathered through observation or experiment.
What is the scientific name of the Grey Wolf
Canis Lupis
What do fossils with similar bone structures suggest?
A common ancestor and shared evolutionary history.
What will happen to a deer population that moves into a colder climate over many generations?
Thicker Fur
Which species is more likely to survive a new disease: one with high or low genetic diversity?
High
What example shows scientific knowledge changing over time?
Continental Drift to Plate tectonics
Are organisms that share a genus closely or distantly related?
Closely
Which type of evidence supports that simple life evolved into more complex life over time?
The Fossil Record
In Darwin’s finches, how did food sources affect beak shape?
Different beak shapes formed due to natural selection and food choice
What causes genetic variation in a population?
Changes in DNA (mutations) and gene mixing during reproduction.
What is the difference between a theory and a law?
A theory explains why something happens; a law describes what happens.
In which domain are animals found?
Eukarya
How can fossils help scientists determine the relative age of species?
By comparing fossil depth and rock layers, showing which organisms appeared first.
What happens to a species that cannot adapt to environmental change?
They go Extinct
What can happen to a species that reproduces asexually in a rapidly changing environment?
It may struggle to survive because it lacks variation.
Why is science considered a “self-correcting” process?
Because new evidence leads scientists to revise and improve their explanations.
Why was it important to have one way to classify organisms?
So everyone could ensure they were talking about the same species