Species of dinoflagellates are responsible for much of the phosphorescence seen in ocean waters at night.
Answer the following statement true (T) or false (F)
True
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Why might Candida albicans become pathogenic in an individual receiving antibacterial medications?
A. This fungal organism can actually utilize the destroyed bacterial cells as a nutrient source and begin to multiply out of control. This can cause a pathogenic state. B. This is an opportunistic pathogen not normally found in normal microbiota. As such, when the bacterial normal microbiota is wiped out by broad-spectrum antibacterial drugs, this opportunist can adhere to and colonize the area left behind. C. This is a usual member of the normal microbiota. However, when the bacterial members of the normal microbiota are wiped out by a broad-spectrum antibacterial drug, this fungal cell type has little to no competition for resources in the affected area. As such, it quickly overgrows and can cause a pathogenic state. D. This is a protozoan species and part of the normal microbiota. When the bacterial members of the normal microbiota are wiped out by a broad-spectrum antibacterial drug, this protozoan cell type has little to no competition for resources in the affected area. As such, it quickly overgrows and can cause a pathogenic state.
Pit vipers are the only known vertebrates with an ability to detect a certain type of stimulus. What can these snakes sense?
A. infrared radiation B. ultraviolet radiation C. microwave radiation D. visible light radiation E. none of these
CAM plants open their stomata at night, admitting CO2 while minimizing water loss. Indicate whether the statement is true or false
A sick child may have influenza or RSV. These virus infections have different treatment options, so the physician requests antibody titer tests. The results are as follows: anti-influenza antibodies are primarily IgM, and anti-RSV antibodies are all IgA and IgG. Which of the following is the most appropriate interpretation?
A) The child has a current RSV infection and was previously exposed to influenza. B) The child currently has influenza and has previously been exposed to RSV. C) The child has concurrent influenza and RSV infections. D) The child has neither influenza nor RSV. E) The results do not provide sufficient data to draw a conclusion.