natural selection Flashcards
1
Q
what is a species?
A
a group of organisms that can interbreed to produce fertile offspring with the same characteristics
2
Q
what is variation caused by?
A
a mutation
3
Q
what is the definition of variation?
A
differences between the same species
4
Q
what is a mutation?
A
a change in the genes passed down to offspring
5
Q
why did the moths with the darker mutation survive and the lighter ones didn’t?
A
because the darker ones were less likely to be seen and eaten by predators
