Answer the following question given this paragraph: Nervous Innervation Dilation and constriction of the airway are achieved through nervous control by the parasympathetic and sympathetic nervous systems. The parasympathetic system causes bronchoconstriction, whereas the sympathetic nervous system stimulates bronchodilation. Reflexes such as coughing, and the ability of the lungs to regulate oxygen and carbon dioxide levels, also result from this autonomic nervous system control. Sensory nerve fibers arise from the vagus nerve, and from the second to fifth thoracic ganglia. The pulmonary plexus is a region on the lung root formed by the entrance of the nerves at the hilum. The nerves then follow the bronchi in the lungs and branch to innervate muscle fibers, glands, and blood vessels. Q: What do we call the region on the lung root formed by the entrance of the nerves at the hilum? Choices: - renal plexus - heart plexus - brain plexus - pulmonary plexus A:
pulmonary plexus
Answer the following question given this paragraph: Secondhand smoke , which comes from breathing the smoke release from tobacco products. Secondhand smoke is also the smoke exhaled by a cigarette smoker. This smoke is extremely dangerous to human health. Q: What is the health-threatening smoke exhaled by a cigarette smoker or released from tobacco products? Choices: - secondary smoke - contamination smoke - primary smoke - secondhand smoke A:
secondhand smoke
Q: Answer the following question given this paragraph: The most destructive types of mass movement are landslides and mudslides. Both occur suddenly. Q: Landslides and mudslides are the most destructive types of what geologic phenomenon? Choices: - land momentum - formation movement - intensity movement - mass movement A:
A: mass movement
Question: Answer the following question given this paragraph: Figure 1.17 This phylogenetic tree was constructed by microbiologist Carl Woese using data obtained from sequencing ribosomal RNA genes. The tree shows the separation of living organisms into three domains: Bacteria, Archaea, and Eukarya. Bacteria and Archaea are prokaryotes, single-celled organisms lacking intracellular organelles. (credit: Eric Gaba; NASA Astrobiology Institute). Q: What scientist constructed a tree diagram, separating living organisms into three domains? Choices: - Gibbs - CT Fletcher - Mendel - carl woese A:
Answer: carl woese
*Question*
Answer the following question given this paragraph: Most of the body's resistance is in its dry skin. When wet, salts go into ion form, lowering the resistance significantly. The interior of the body has a much lower resistance than dry skin because of all the ionic solutions and fluids it contains. If skin resistance is bypassed, such as by an intravenous infusion, a catheter, or exposed pacemaker leads, a person is rendered microshock sensitive. In this condition, currents about 1/1000 those listed in Table 20.3 produce similar effects. During open-heart surgery, currents as small as 20 A can be used to still the heart. Stringent electrical safety requirements in hospitals, particularly in surgery and intensive care, are related to the doubly disadvantaged microshock-sensitive patient. The break in the skin has reduced his resistance, and so the same voltage causes a greater current, and a much smaller current has a greater effect. Q: What is lowered when salts go into ion form? Choices: - charge - voltage - power - resistance A:
**Answer**
resistance
(Q).
Answer the following question given this paragraph: Q: Psip can be positive or negative relative to what kind of pressure? Choices: - inertia - magnetic - manometric - atmospheric A:
(A).
atmospheric