Life science is integral to understanding our world. It studies living organisms and how they function physically and chemically. Life science relates to other subjects through various connections. It uses mathematics through laws, equations, statistics and data analysis. Chemistry studies molecules and reactions in living things. Physics examines motion, energy and instruments used in life science. Geography observes how plants and animals distribute based on environmental factors. Economics considers production and resources. Sociology studies human behavior and social interactions. In conclusion, life science provides insights into ourselves, nature, and the living world through experiments and discoveries across various disciplines.