Removal of microbes from the skin is antisepsis
Indicate whether the statement is true or false
TRUE
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Epiglottitis is a potentially life-threatening disease because the patient's airway can become completely obstructed (blocked) if not treated. Which bacterium usually causes this disease?
a. Haemophilus influenzae type B b. Corynebacterium diphtheriae c. Streptococcus pyogenes d. Type A influenza virus
Answer the following statements true (T) or false (F)
1. SLOSS stands for single long or several short. 2. Beavers are an example of a dominant species. 3. Captive breeding could potentially save all rare species. 4. Field experiments by David Tilman showed that increased plant diversity reduced the severity of attack by foliar fungal diseases. 5. According to the IUCN's data, a smaller percentage of bird than coral reef-dwelling fish species are endangered.
The main class(es) of neurotransmitters involved in regulating mood in vertebrate animals is/are
A. the biogenic amines. B. acetylcholine and amino acids. C. amino acids. D. acetylcholine. E. gases such as nitric oxide and carbon monoxide.
Visual accommodation involves the ability to ____.
A. change the sensitivity of the rods and cones by means of neurotransmitters B. change the position of the retina C. change the thickness of the lens by contracting or relaxing certain muscles D. protect the eyeball from foreign matter E. prevent eye strain