Evolution/extinction Flashcards
1
Q
Lamarck
A
Things that are used more grow bigger and more useful
2
Q
Darwin
A
Something that gives a survival advantage will be evolved towards
3
Q
Wallace
A
Made discoveries in Amazon
Discovered amazon river divides animals
Birds on different islands were very different
4
Q
Fossil steps
A
Organism dies Buried under sediment Soft tissue decomposes Bones deteriorate, leave a mould Minerals replace the cast left behind Fossil made
5
Q
Functionally extinct
A
Where a species ceases to play a significant role in its environment, or is no longer viable
6
Q
Speciation
A
Over millions of years, land divides to isolate each population
They will mutate over time
Those who are more adapted will survive
Through natural selection, those with the necessary traits breed
Speciation happens so they can’t successfully interbreed
