Encephalitis caused by arboviruses involves the development of
A. fever, headache, and rash.
B. myalgia and orbital pain.
C. coma, convulsions, and paralysis in severe cases.
D. muscle aches and joint stiffness.
E. All of the choices are correct.
Answer: C
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A positive serological test for tuberculosis indicates that the patient
A. is immune to tuberculosis. B. is an asymptomatic carrier of tuberculosis. C. has active tuberculosis. D. has been exposed to tuberculosis.
Which of the following is NOT true of chlorophyll?
A) It is found in mitochondria. B) It absorbs light at the red and blue ends of the spectrum. C) It is the main photosynthetic pigment in plants. D) It reflects green wavelengths of light. E) It is found in the thylakoid membrane.
The three types of survivorship curves are idealized situations. What type of curve probably happens more frequently in nature?
What will be an ideal response?
Pollen of one plant species will not germinate on the flower of another species. This is an example of:
A) hybrid inviability. B) temporal isolation. C) gametic isolation. D) hybrid infertility.