A hematocrit may be used to: 1  Identify and evaluate the severity of anemia (low RBCs, low hemoglobin, low hematocrit) or polycythemia (high RBCs, high hemoglobin, high hematocrit) 2  Monitor the response to treatment of anemia or polycythemia and other disorders that affect RBC production or lifespan.
Biomass is any organic matter that can be used as an energy source. Wood, crops, and yard and animal waste are examples of biomass.People have used biomass longer than any other energy source. For thousands of years, people have burned wood to heat their homes and cook their food.Biomass gets its energy from the sun.Plants absorb sunlight in a process called photosynthesis.iomass is any organic matter that can be used as an energy source. Wood, crops, and yard and animal waste are examples of biomass.
   Biomass can be used to make electricity. Many towns burn their garbage in waste-to-energy plants. Instead of putting the garbage in landfills, they burn it to make electricity.    Biomass can be used to make an energy-rich gas called biogas. Biogas is like the natural gas we use in our stoves and furnaces.iomass energy generally refers to using energy from resources such as animal waste and municipal waste, or resources such as corn or sugar cane.