Answer:
Choose the option that best matches the description given.
A relation indicating certain causes yield only certain effects is ______
system.
homogeneity
contingency
necessity
Explanation:
The definition of a contingency is something that depends on something else in order to happen.
answer: Best before date is the correct answer. Best before date must be marked on ready-to-eat bags (PHFs). Best Before date means that the product will be of the best quality or condition.
Answer: Yes, if the patient was treated for drug abuse, alcoholism, sickle cell anemia or HIV
Explanation:
Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. Cytokines such as interferons are molecules that signal neighbouring cells and induce an antiviral state in them. These cells are then primed to resist an infection with the invading virus.
Hopefully this is right:
Comes in through superior and inferior vena cava, then enters right atrium, then tricuspid valve and into the right ventricle. Then the deoxygenated blood gets pumped through the pulmonary artery to the lungs. Oxygenated blood comes back through pulmonary vein and into left atrium. Then goes through mitral valve and into left ventricle which then pumps the blood through aorta.
