Attractive Characteristics Evolve Through Sexual Selection Flashcards
What is natural selection?
the process where characteristics that make an individual more likely to reproduce and pass on their genes
who came up with natural selection
Charles Darwin
Name one of the processes of natural selection
Sexual selection
Within a species there are certain…
characteristics that make an individual more likely to find a partner
What kind of characteristics do people look for?
Being physically attractive and fertility
What do these characteristics do for the individual?
It gives them a reproductive advantage
Because of this advantage, what happens to these characteristics?
the genes become more prominent through generations
How many types of sexual selection are there?
two
what are the types of sexual selection?
Intra-sexual selection
Inter-sexual selection
Intra-sexual selection
takes place when males compete (often aggressively) and the winner is rewarded with the female
Inter-sexual selection
takes place when males compete for the attention of a female
What is the female’s role in intra-sexual selection?
the female is passive in this process
What is the female’s role in inter-sexual selection?
the female plays an active role, choosing her own mate
