Origins of evolution
Evolution is…
What is a change in a population over many generations
Darwin made most of his observations on…
What is The Beagle
Adaptation is…
What is A trait that helps an organism survive
Which is evidence of evolution
A. Fossils
B. Music
C. Seasons
D. Cloud shapes
What are fossils
Which situation shows natural selection
What is Drought causing long-beaked birds to survive
Fitness in biology means…
What is Surviving AND producing the most offspring
Darwin noticed different beak shapes in finches because…
What is They ate different foods
Structural adaptation example on a bird…
What are Sharp claws
Fossils that show transitional forms (like fish with legs) support…
What is Common ancestry
Which situation best shows natural selection at work?
A. Students choosing their lunch
B. Moths becoming darker after pollution increased
C. Dogs learning tricks
D. Birds singing louder in spring
What is Moths becoming darker after pollution increased
This increases variation in a population
What are Mutations
Darwin learned from the Galápagos tortoises that…
What is Shell shapes matched environment
Behavioral adaptation example in birds…
(hint: migration)
What is birds flying south
Homologous structures support…
Whst is common ancestry
A population of rabbits becomes faster over generations because predators catch the slower ones. What process is this?
What is Natural selection
Speciation is…
What is when one species splits into two
Darwin’s theory of evolution by natural selection states that…
What is Individuals with advantageous traits survive and reproduce
Selective pressure is…
What are Environmental force that affects survival
Whale hip bones are evidence of…
What are walking ancestors
Natural selection only happens in animals, not bacteria or plants.
What is false
Lamarck incorrectly believed that…
What is Organisms gain traits by using them
Natural selection acts on individuals, but evolution occurs in populations.
What is true
Give an example of an adaptation and how it helps survival.
Open ended
Fossils always show a complete history of life.
What is false
Natural selection always leads to organisms becoming “better” over time.
What is False
(It only makes them better for their current environment, not universally better.)