Otto Loewi demonstrated that neurons transmit signals across synapses
a. by electrical signals.
b. by Vagusstoff.
c. by acetylcholine.
d. by chemical signals.
e. by proteins
D
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The earliest fossils found appear to be from the domain Bacteria. From which group of bacteria are these fossils?
a. Staphylococcus b. nitrogen-fixing bacteria c. cyanobacteria d. various lactobacilli
In humans, the oxygen concentration of the blood is the most important chemical stimulus for
regulating the rate of respiration. ____________________ Indicate whether the statement is true or false.
Solid tissues in animals include epithelial tissue, _______ tissue, nervous tissue, and muscle.
a. blood b. connective c. guard d. parenchymal
Your patient is an approximately 60-year-old male who presents at a local shopping mall unresponsive. Initial assessment findings are as follows: "Pt is unresponsive, has a weak rapid radial pulse, seems confused, pale, cool and clammy skin." A rapid medical assessment reveals a medical alert bracelet with insulin-dependent diabetic on it. Based on your initial assessment, what is the most likely cause of the patient's condition?
A) Hyperosmolar hyperglycemic nonketotic coma (HHNK) B) Hypoglycemia C) Hyperglycemia D) Diabetic ketoacidosis (DKA)