Biology: Chapter 5; Evolution Flashcards
0
Q
What does Charles Darwin’s theory of Natural Selection propose?
A
A mechanism by which organisms can evolve to become adapted to their environment.
1
Q
Evolution depends on…
A
Heritable variation in living organisms.
2
Q
Species may become extinct if…
A
They have not adapted or have adapted to an environment which has now significantly changed.
3
Q
Give an example of evolution happening quickly.
A
Although evolution can take years, it can sometimes happen rapidly.
Eg. Warfarin in rats, antibiotic resistance in bacteria.
4
Q
What may a scientist use a model to do?
A
Scientists may use ‘models’ to draw conclusions, which can be useful when experiments are difficult to carry out.
