The parasite T. gondii is acquired via the ingestion of infected oocysts from cat feces. A diagnosis is primarily made through:
a. examination of stool.
b. examination of blood films.
c. observance of "jerky" motility.
d. serologic means.
D
Infection caused by T. gondii, a tissue protozoon, is acquired via the ingestion of infected meat, the ingestion of oocysts from cat feces, transplacental transmission, blood transfusions, or organ transplantation. The diagnosis of toxoplasmosis is primarily made through serologic means, rather than through the identification of the organisms observed in human clinical specimens.
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A. Killing bacteria is an accident. B. Fungi are killed by bacterial toxins. C. Fungi compete with bacteria for resources. D. Fungi eat bacteria.
In mutualism ________.
A. the partners will not survive separately in many cases B. the mutualist is dependent on the host C. a reciprocal benefit accrues to both partners D. All of the choices are correct.
Which of the following is the correct way to write the scientific name of the wolf?
A) canis Lupus B) Canis Lupus C) Canis lupus D) Canis lupus E) canis lupus
Bacteria may have a better chance of surviving longer and evading the host defense mechanism if they:
A. go under sporulation B. have longer log phase C. go under vegetation D. go under germination