SB4c Development of Darwin's theory Flashcards
In 1863 when Darwin visited the Galapagos islands what did he notice?
he noticed differences in the beaks of mockingbirds on different islands. He wondered if their beaks would change if they moved to a different island.
How did Darwin come up with the theory of evolution?
.Darwin knew that if people had too many children there would not be enough food for them all.
.This would cause a struggle for survival.
.Some would die, only the best adapted would survive to reproduce and pass on their characteristics.
How did Darwin and his friend Wallace spread their views?
.Darwin wrote a summary of his and Wallace’s idea and published it in a Scientific paper.
.The next year Darwin finished ‘ On the Origin of Species’.
Why was the idea of evolution slow to be accepted?
due to a belief in God and a lack of explanation of how variation occurred.
Verterbrates have limbs with 5 fingers, what is this called?
a pentadactyl limb.
What do the similarites of pentadactyl limbs suggest?
that there was evolution from a common ancestor and not that they were designed independently from each other.
