Answer:
Stabilizing selection
Step-by-step explanation:
Stabilizing selection is a form of natural selection that is greatly favoured by the average individuals in a given population.
Stabilizing selection is responsible for a number of characteristics in humans and animals.Stabilizing selection functions perfectly on characteristics that are polygenic.
Babies that have a low birth weight tends to be weak and go through a lot of different health issues, while babies wth high birth weight will experience a lot of difficulty and complications during childbirth which may lead to their death and eventual death of their mothers.