Give an explanation to Leah and her family on how vaccines work to help the immune system develop an immunity to a specific pathogen. Describe in detail this process being sure to include pathogens, antigens, antibodies, T cells, and B cells.

Which step would a state health department most likely take to reduce lead exposure? promote health-planning operations to limit lead exposure at home. evaluate the number of countries affected by lead exposure. create general national guidelines for working with lead. carry out research on the worldwide effects of lead products.

Minute vessels that collect blood from the capillaries and join to form veins are: venoles venules viscera venoids

Which action best increases one’s stamina a) exercising when you feel like it b) saving so much that one like sleep c) refusing to exercise to save the energy needed to work d)exercising on a regular basis