Lecture 27 Flashcards
1
Q
What is evolution?
A
Evolution is the change in populations of organisms over time.
2
Q
What is required for evolution?
A
variation, inheritance of genes from parents, selection pressures and time.
3
Q
What does similar DNA to another organism mean?
A
Similar DNA to another organism means the two organisms are closely related, the more similar the more closely related.
4
Q
What is artificial selection?
A
Selection pressures acting on species from humans for specific traits.
5
Q
Why is evolution not perfect?
A
Evolution can only do changes in steps, it can’t spontaneously produce new organisms. As such some traits produced by evolution will not be at maximum efficency.
