Evolution Flashcards
1
Q
What does Darwins theory of evolution state?
A
All species of living things have evolved from simple life forms that first developed over 3 billion years ago
2
Q
Why was Darwins theory only gradually accepted?
A
- Challenged church and god
- Insufficient evidence
- Theory of inheritance and variation was unknown until 50 years later
3
Q
What we’re other theories based on?
A
The idea that changes occur during a lifetime can be inherited
4
Q
Who had an alternate theory?
A
Lamarck
5
Q
What groups are living organisms classified in?
A
Animals
Plants
Microorganisms
6
Q
How do these classifications help?
A
Help us understand evolutionary and ecological relationships
7
Q
What do models allow us to do?
A
Suggest relationships between organisms
8
Q
What is natural selection?
A
- Individual organisms within a particular species may show a wide range of variation because of differences in genes
- Individuals with characteristics most suited to the environment are most likely to survive and breed
- The genes which have enabled these individuals to survive are then passed onto their offspring
9
Q
Where new forms of a gene result from ……….. there may be relatively …… change if the ………….. changes
A
Mutation
Rapid
Environment
