Which is not correct about kala azar?
A. Chemotherapy with chloroquine is usually effective.
B. It is transmitted by the sand fly.
C. It is a form of leishmaniasis.
D. It is fatal in untreated cases.
E. Death is partly due to anemia, destruction of blood-forming tissues, and secondary infections.
Answer: A
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Osmoconformers would most likely be found in:
a. estuaries. b. coastal zones that receive freshwater. c. freshwater. d. terrestrial habitats. e. open ocean waters.
The ideal agricultural soil is:
a. loam. b. silt. c. sand. d. clay
e. dry.What advantage do gymnosperms have over ferns?
A. Gymnosperms produce pollen and do not require water to reproduce. B. Gymnosperms have alternation of generations. C. Gymnosperms have a vascular system, which allows them to grow taller. D. Gymnosperms can grow larger gametophytes. E. Gymnosperms can produce flowers and fruits to aid in seed dispersal.
Mutations that arise in nature, from no particular artificial agent, are called ________
A) chromosomal losses B) induced mutations C) nutritional mutations D) spontaneous mutations E) cosmic mutations