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True or False. Silica tetrahedrons in orthosilicates (an isolated silicate structure) share two oxygen atoms with adjacent silica tetrahedrons:

The oldest eon of geologic time is:

The technology developed in the 1950’s that allowed for the bathymetric mapping of the sea floor is known as:

The following drug is an example of an antacid: (1)1.    Alginic acid2.    Magnesium hydroxide3.    Sucralfate4.    Omeprazole5.    Bismuth subcitrate

Match the following drugs with their correct classifications below. You may use an option more than once or not at all. (10)

Match the following drugs with their appropriate statements below. Each drug may be used more than once or not at all. (5)

Cytomegalovirus infection is treated with the following: (1)1.     Lamivudine2.     Oseltamivir 3.     Ribavirin4.     Ganciclovir5.     Darunavir

The following is appropriate for a post-menopausal woman without uterus: (1)1.    Levonorgestrel intrauterine system (LNG-IUS)2.    Estrogen only hormone replacement therapy3.    Oral progesterone only hormonal contraceptive4.    Non-steroidal anti-inflammatory drugs5.    Bisphosphonates

Nucleoside and nucleotide reverse transcriptase inhibitors (NRTIs) are excreted through the kidneys, and all require dosage adjustment in renal insufficiency except: (1)1.   Emtricitabine2.   Lamivudine 3.   Abacavir4.   Stavudine 5.   Tenofovir 

Match the following drugs with their correct mechanism of action below. You may use an option more than once or not at all. (5)