DarWINNER
What theory was Charles Darwin responsible for creating?
Theory of Evolution
What is an adaptation
A trait that helps an organism survive in its environment
Only the organisms with traits that make them well-suited for their environment live long enough to have babies and pass on those traits (AKA survival of the fittest)
Natural selection
Artificial Selection
What causes birds to have different beak shapes?
Different food sources
Which chain of islands did Darwin focus on when studying species?
Galapagos Islands
What causes new adaptations to occur in a species
Mutations
What does the word "fittest" mean in the term "survival of the fittest"?
Has traits that allow it to survive better than others
Humans take the biggest turkeys of the group, breed them together. Repeat for decades = massive turkeys
Describe the beak of a bird that eats tiny insects that live in deep cracks in rocks
Very long, narrow, pointy
Darwin observed that species ______ over time
Change
Describe what the adaptation is in the following example:
Beavers use sharp, hardy teeth to chew through trunks of trees. They then use the trees to build damns in the water as a place to live.
Sharp hardy teeth for chewing through wood
Describe how a wolf population becoming cuddly dogs is an example of artifical selection
Tamest/nicest wolves are bred together = Even more tame/nice wolf --> repeat for decades = a trainable animal that rarely harms humans
Describe the beak of a bird that only eats large, crunchy walnuts
Darwin found that differences in species was due to different _____ sources
Food
Name the type of animal and the adaptation that we focused on for our lab last week
Bird Beaks
Describe a beak of a bird that only eats soft leaves from a tree
Short, rounded, wide
Darwin noticed groups of species in two different locations had similarities, but also key differences. Where were these two groups of species found?
Mainland and islands nearby
Name one adaptation a snake has and describe how its helpful for its survival
Answers vary
Imagine a desert with black sand. A species of beetles live in the desert. Some of the beetles are black, and some are white. Describe how the population of the beetles will change as more hawks (that eat beetles) find their way into the desert
Hawks can see white beetles easier = more white beetles eaten = more black beetles survival to have babies = more black beetle babies born than white = species slowly changes to only include black beetles.