Answer:
Signal detection theory is used to predict the psychological inclination of patient and an individual is assessed on the basis of their signal detection. An individual is given the right to decide if a stimulus is weak or strong and the psychologists use signal detection theory to evaluate how accurately participants are able to recognize the faintest and strongest stimuli. Hence the potential outcome of searching a North Star in the sky might be different for different individuals.
Explanation:
When the participants are asked to indicate the North Star, the researcher will assess if the decision was correct. For instance, various psychological factors such as attention level, motivation etc. guide the detection of faint stimuli among different individuals. For example, if a participant detects a north star and the signal is incorrect, then we consider it as a false alarm. If the participants did not find the signal and consider it as absent; however the North Star was present, then it is referred to as missed the signal. On the other hand, if the participant identifies no north star on the sky and it is correct, then it is referred to as correct rejection. However, if the participant recognize the North Star and it is actually present, the psychologist will refer to it as a Hit.
Answer: Measures the antigen levels on the cell surface
Explanation: Fluorescence-Activated Cell Sorting. Fluorescence-activated cell sorting (FACS) measures the antigen levels on the cell surface quantitatively. Cells are dyed with a fluorescent antibody, then placed in a stream of liquid which passes the focus of a laser, and each cell emits light.
Answer:
C. Macrophages
Explanation:
Macrophages are derived from monocytes of the bone marrow. They migrate to connective tissue and are in charge of phagocytosis of foreign particles. They also participate in the enhancement of inmunological activities of lymphocytes. Macrophages can be found in infection sites, since they detect, phagocytose and destroy bacteria and other harmful organisms.
