Answer: improvements in health care
Step-by-step explanation:
A biologists is a scientists who posses specialized knowledge related to the field of biology and it's related aspects. The biologists use the knowledge of biology in solving various problems related to living beings for example conservation of biodiversity, treatment and diagnostics of diseases and disorders and others.
Among the options given, improvement in health care is the correct option this is because of the fact that the field of biological science includes the sub-discipline of medical science and research which is expected to give detailed and reliable solution for health care issues.