What is natural selection?
the process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species
What is evolution?
a gradual change of species overtime
What is a species?
a group of similar organisms that can mate with each other and create fertile offspring
How does natural selection lead to the evolution of species?
when animals are better adapted, they will thrive and reproduce more, making the species bigger
Who is Charles Darwin?
a british naturalist that sailed on the beagle to go observe animals in the galapagos islands
What is a naturalist?
a person who studies the natural world
What is the ship Darwin sailed on called?
the beagle
Where did Darwin travel to make his most brilliant discovery?
the galapagos islands
What is the scientific theory?
a well tested concept that explains a wide range of observations
What did Darwin want to find out in the Galapagos?
understanding the different adaptations on animals
What was Darwin's reasoning on the Galapagos Islands?
plants or animals that arrived on the galapagos islands faced conditions from which were different from those on the mainland- species gradually changed from generation
What is Darwin's theory of evolution?
That animals change overtime and all originated form the finch
What did Darwin examine in his laboratory when he got back to England?
the differences between the animals
Why do the same species of animals that live in the same environment have different traits?
1 surroundings
2 eat different things
3 differnet adaptions
4 different parents
What happened when you put the dams in with the rabbits on the evolution readiness activity?
some rabbits died out bc they lost what they need to survive
What does variation mean?
differences between organisms of the same species
How does variation occur from generation to generation?
every animal is different, therefore the parents create different animals
What is selective breeding?
mixing 2 species to create a certain trait
How does certain DNA change an animal?
certain traits in offspring
different parents
What is special about animals living on different Galapagos Islands?
animals of the same species had different traits than the same species varying from island to island
What triggered Darwin's scientific theory?
animals of the same species had different traits than the same species varying from island to island
Why were animals of the same species different from each other o the galapagos?
adaptions
why does evolution by natural selection becoming more common in a population over many generations?
their is a slight change in every generation building up overtime and changing the species
Why to animals over produce?
not all the offspring will survive
Why does evolution by natural selection take many generations to form?
their is only 1 slight change passed down the generations
What book does Darwin describe natural selection in?
The Orgin of Species
Why does evolution by natural selection result on population level change?
over production
What year and month did Darwin set sail on his voyage?
december 1931
What is the Beagles full name?
The HMS Beagle
How long was the voyage on the Beagle?
5 years
What did Darwin observe on the voyage?
plants and animals
What were 3 observations that Darwin made on the voyage of the beagle?
1 diversity of living things
2 fossils
3 characteristics of organisms
How are the claws of the galpagos and south american iguanas adaptations?
food and survival
How did Darwin explain why Galapagos species had different adaptations form similar south american species?
claw sizes
How does selective breeding support Darwin's hypothesis?
2 different species will create traits that will produce more of that trait
How do variation and natural selection work together to cause evolution?
adapting overtime
What is a fossil?
animal remains or traces from something that lived in the past
How did the beaks of the Galapagos finches differ from island to island?
size and shape
What happens to some animal variations overtime?
the gradually disapear
What did Darwin help us understand?
life on earth
Why are species different?
different food, adaptions, body plans and variation