WGU C458 Health, Fitness and
Wellness Exam Questions And
Answers Graded A 2026/2027
Protozoa - ANSWER>Single-celled microscopic parasitic animals. Release toxin and enzymes that destroy cells or
interfere with their functions. Causes-Trichomoniasis, malaria, amoebic dysentery, African sleeping sickness
Helminths - ANSWER>Multicellular parasitic animals. Vary in size from relatively small (pinworms) to a length of
several feet. May lodge in various parts of the body and block the digestive tract, blood, and lymph vessels. Causes-
Pinworms, tapeworms, trichinosis
Stages of Diseases - ANSWER>body's reaction to invasion. Several broad phases:
incubation-time between initial infection and the appearance of symptoms
prodromal-short period in which the body begins to react to the pathogens
clinical-time when the disease is at its worst. The characteristics of the disease are readily identified
convalescence-period in which the host feels better but may or may not feel like returning to normal activities
recovery-time in which recovery seems complete. However, the disease may still be communicable.
, Immunity - ANSWER>the state of being protected against diseases or through the activities of the immune system.
antigen (foreign body) - ANSWER>Anything that invades the body and causes the immune system to react
phagocytosis - ANSWER>ingestion and destruction of pathogens by several different types of white blood cells
Humoral immunity - ANSWER>the protection provided by antibodies derived from B cells.
cellular immunity - ANSWER>T cells are activated and attack microbes or abnormal cells such as viral or tumor cells
Lymphocytes - ANSWER>type of white blood. Two forms are T cells and B cells. T cells circulate through lymphatic
tissue and the bloodstream, neutralizing antigens. T helpers or T suppressor cells, respectively, increase or release
the response of other lymphocytes. When stimulated by an antigen, B cells produce antibodies that destroy the
antigens.
Artificial immunity - ANSWER>acquired by vaccination when killed or attenuated (weakened) organisms or toxins
(poisons) are injected into the body to stimulate antibody formation.
Wellness Exam Questions And
Answers Graded A 2026/2027
Protozoa - ANSWER>Single-celled microscopic parasitic animals. Release toxin and enzymes that destroy cells or
interfere with their functions. Causes-Trichomoniasis, malaria, amoebic dysentery, African sleeping sickness
Helminths - ANSWER>Multicellular parasitic animals. Vary in size from relatively small (pinworms) to a length of
several feet. May lodge in various parts of the body and block the digestive tract, blood, and lymph vessels. Causes-
Pinworms, tapeworms, trichinosis
Stages of Diseases - ANSWER>body's reaction to invasion. Several broad phases:
incubation-time between initial infection and the appearance of symptoms
prodromal-short period in which the body begins to react to the pathogens
clinical-time when the disease is at its worst. The characteristics of the disease are readily identified
convalescence-period in which the host feels better but may or may not feel like returning to normal activities
recovery-time in which recovery seems complete. However, the disease may still be communicable.
, Immunity - ANSWER>the state of being protected against diseases or through the activities of the immune system.
antigen (foreign body) - ANSWER>Anything that invades the body and causes the immune system to react
phagocytosis - ANSWER>ingestion and destruction of pathogens by several different types of white blood cells
Humoral immunity - ANSWER>the protection provided by antibodies derived from B cells.
cellular immunity - ANSWER>T cells are activated and attack microbes or abnormal cells such as viral or tumor cells
Lymphocytes - ANSWER>type of white blood. Two forms are T cells and B cells. T cells circulate through lymphatic
tissue and the bloodstream, neutralizing antigens. T helpers or T suppressor cells, respectively, increase or release
the response of other lymphocytes. When stimulated by an antigen, B cells produce antibodies that destroy the
antigens.
Artificial immunity - ANSWER>acquired by vaccination when killed or attenuated (weakened) organisms or toxins
(poisons) are injected into the body to stimulate antibody formation.
