Evolution Basics
What type of organisms can evolve?
All Living organisms
What is a population?
A group of the same species living in the same area.
Can one organism evolve during its lifetime?
No.
What did the tools (tweezers, spoons, etc.) represent?
Different bird beaks.
What is the main idea of evolution?
Species change over time based on survival and reproduction.
Does evolution happen to individuals or populations?
Populations
What does natural selection mean?
Organisms with helpful traits are more likely to survive and reproduce.
What causes some traits to become more common?
Natural Selection
What did the food items represent?
Food sources in the environment.
What happens if the environment changes?
Different traits may become advantageous.
What must be passed down for evolution to occur?
Traits through reproduction.
What is biodiversity?
The variety of life in an area.
Why can’t individuals evolve?
Their traits don’t change genetically during life.
What happened to birds that collected more food?
They survived and reproduced.
Why is competition important in evolution?
Limited Resources
How long does evolution usually take?
Many generations.
What do we call a trait that helps an organism survive?
Adaptation.
What changes when evolution occurs?
The traits in a population.
What happened to birds that collected little food?
They died out.
Why does biodiversity matter?
It helps ecosystems survive changes.
What is evolution?
A change in traits of a population over time.
What is variation?
Differences in traits among individuals in a population.
What must exist in a population for natural selection to work?
Variation
What did the lab show about adaptations?
Some traits work better in certain environments.
What scientist is famous for studying finches and evolution?
Charles Darwin.