Answer:
The options that apply are medicines, environment and understanding yourself.
Explanation:
Medicines:
The increase in knowledge about the human body and microbes has helped us develop medicines and remedies that were not available before. Most diseases can now be diagnosed and cured which has improved our living standards and life expectancy.
Environment:
The study of biology has widely increased our knowledge about the biotic and abiotic factors of the environment.
Understanding yourself:
The study of biology has helped us understand ourselves better. Our living standards are advancing day by day due to techniques like genetic engineering.