Answer;
Individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce.
Explanation;
-In Africa savanna more wildebeest are born than the environment can support. As a result over a period of years individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce. This is referred to as natural selection.
-Natural selection is the process where organisms with favorable traits are more likely to reproduce. In doing so, they pass on these traits to the next generation. Over time this process allows organisms to adapt to their environment.
As a result of having more wildbeest than the environment can support, over a period of years to come, it is only the ones that are able to adapt to the situation that will survive and give birth to young ones while those that are unable to adapt to the situation will die out. This phenomenon is called the survival of the fittest. Because there were more wildebeest than the food resources that are available, there will be competition and only those who can cope will survive and reproduce while others die out.