Darwin's concept of fitness is based on two separate abilities. These are the ability to (Points : 5)
survive and reproduce.
find a mate and have offspring.
defend against enemies and find food.
produce and defend a family.

Respuesta :

Neuron
Find a mate and have offspring + survive and reproduce. 

This is completely in line with the idea that Darwin promoted. An organism had to survive in order to reproduce. At the same time that same organism had also to find a mate in order to be able to reproduce and have offspring.