The line of defense is referred to as the immune response. 2. are large, Y-shaped proteins that recognize and bind to antigens. 3. The lymphatic system produces leukocytes called . 4. cells and cells are the two major types of lymphocytes. 5. Lymphocytes recognize and help destroy in body fluids and cells. 6. Memory B and T cells help protect the body from re-infection by pathogens that have infected the body in the past, a protection called . 7. The immune response inv

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.