What is the best definition of a body system?
a. The containment of functional tissues
b. A collection of diverse specialized cells
c. A multi-cellular life form
d. An integrated collection of related organs
e. A living being capable of cognition
d
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The Na+/K+ pump ________.
A. contributes to the negative intracellular charge B. establishes equal concentrations of sodium and potassium ions across the membrane C. is an example of secondary active transport D. exchanges three potassium for every 2 sodium molecules. As it stands, that answer is also correct.
Which of the following drugs, administered as an aerosol spray, would be most likely to help an infant with respiratory distress syndrome of the newborn?
A. pulmonary surfactant B. a beta-adrenergic agonist C. a muscarinic agonist D. histamine E. a beta-adrenergic antagonist
The figure is a process figure of the chemical synapse. What does "B" represent?
A. postsynaptic membrane B. synaptic cleft C. synaptic vesicle D. voltage-gated calcium channel E. presynaptic terminal
Which term below refers to the study of the whole genome and how genes and noncoding DNA interact?
a) genetics b) genomics c) cytogenetics d) Mendelian genetics