Which structure separates the thoracic and abdominal cavities?
a. the diaphragm
b. the liver
c. the stomach
d. the duodenum
e. the ribs
A
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Middle eastern respiratory syndrome (MERS) is caused by
A) Streptococcus pneumoniae. B) the influenza virus. C) a coronavirus. D) a rhinovirus.
Which of the following sequences is correct?
a. receptors >>> sensory neurons >>> motor neurons >>> interneurons b. sensory neurons >>> receptors >>> motor neurons c. motor neurons >>> integrators >>> sensory neurons d. receptors >>> motor neurons >>> interneurons >>> sensory neurons e. sensory neurons >>> interneurons >>> motor neurons
In addition to penicillins, which group of antibiotics also exhibits a beta-lactam ring structure?
A) Trimethoprim B) Sulfonamides C) Cephalosporins D) Chloramphenicol
Which of the following options correctly lists the varieties of life in the order that they appear in the geologic record, from earliest to most recent?
A) reptiles, land arthropods, plants and fungi on land, flowering plants B) land arthropods, plants and fungi on land, flowering plants, reptiles C) plants and fungi on land, land arthropods, reptiles, flowering plants D) plants and fungi on land, land arthropods, flowering plants, reptiles