Which is the correct definition of the immune system? a. a combination of body defenses made up of the cells tissues and organs that fight pathogens. b. your body's ability to resist the pathogens that cause a particular disease. c. a condition that occurs when pathogens enter the body, multiply, and damage body cells. d. the body's response to injury or disease, resulting in a condition of swelling, pain, heat and redness.

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.