Which of the following is the most common systemic fungal disease in the United States?
A) cryptococcosis
B) coccidioidomycosis
C) histoplasmosis
D) Pneumocystis pneumonia
C) histoplasmosis
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For the following gene, which mutant likely has lost its enhancer? Mutant # Deletion Region % Transcription WT None 100% 1 1-200 150% 2 250-400 100% 3 500-800 50% 4 950-1100 0%
What will be an ideal response?
Which animals exhibit problem solving?
a. all vertebrates b. a few vertebrates, including primates c. only primates d. only humans
e. all vertebrates, and a few invertebratesNatural killer cells destroy target cells by:
a. releasing antibiotics, which break down the cell membranes. b. releasing cytokines and enzymes that trigger apoptosis. c. releasing histamine, which signals other blood cells to aggregate. d. phagocytosis, after the cells are targeted by antibodies. e. releasing lysosomal enzymes, which digest the target cells.
________ are the most diverse group of arthropods
A) Insects B) Millipedes C) Arachnids D) Crustaceans