Systemic involvement is rare in infection caused by Ancylostoma braziliense or Ancylostoma caninum; however, pneumonitis may occur. The antihelminthic therapy used to treat this infec-tion is:
a. ivermectin or thiabendazole.
b. metronidazole or thiabendazole.
c. mebendazole or ivermectin.
d. albendazole or diethylcarbamazine.
A
A. braziliense or A. caninum is treated with ivermectin or thiabendazole.
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_________ make it possible for researchers to study how an entire genome responds to an environmental stimulus
A. Bioinformatics B. PCR reactions C. DNA microarrays D. The BLAST program
Match the following items with the correct phrases.
_______1. In the nitrogen cycle, bacteria called ____________________ convert atmospheric nitrogen gas into ammonia in the soil. _______2. ____________________ live in the root nodules of legumes such as alfalfa and clover. _______3. ____________________ are capable of converting the nitrogen within a dead plant or animal into ammonia in the soil. _______4. In the nitrogen cycle, soil organisms called ____________________ convert ammonia into nitrites, and nitrites into nitrates. _______5. In the nitrogen cycle, soil organisms called ____________________ convert the nitrogen in nitrates to nitrogen gas in the atmosphere. a. cyanobacteria b. denitrifying bacteria c. nitrifying bacteria d. nitrogen-fixing bacteria e. saprophytes
the figure above to answer questions 12–14
E 12. A body plan lacking a body cavity is indicated by a. A. b. B. c. C. d. A and B. e. none of these.
Annelids are segmented worms
____________________ Indicate whether the statement is true or false.