Pathogens generally invade the body, in their invasion they can duplicate and cause confusion such as hijacking your cells, thus they cause infection and disease. Some of these pathogens are spread through air, sweat, blood, excrete (urine/feces), or general human contact with anything concealing the pathogen.
Answer:
B
Explanation:
the other two have no correlation to her learning more about her ecosystem.
Answer:
Cancer develops when the body's normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor. Some cancers, such as leukemia, do not form tumors.
Explanation: