Answer:
virus
Explanation:
viruses are dead but can only live off of a living host.
Answer:
False
Explanation:
Non-rapid eye movement sleep (NREM) is a stage of profound sleep that is characterized by a decrease rate of the body's autonomic physiological activities.
This sleep stage is also characterized <u>by the absence of dreams</u>, in contrast to Rapid and simultaneous movement (REM) sleep which, due to the brain's high activity, the <u>presence of dreams is more likely to occur.</u> In fact, this stage is associated with vivid and intense dreams due to loss of reflexes.
Therefore, dreams generally happen in REM sleep, not NREM sleep.
Answer:
The three factors that determine the level of cellular injury that occurs during an insult are duration, severity and ischemia.
Therefore, the correct answer to the question is option A.
Explanation:
Ischemia is a disorder that happens when there is scarcity of oxygen in the blood which results and list supply of oxygenated blood to the tissues. If the supply of blood is less to the tissue, the tissues are unable to perform the work at a faster rate.
If the duration of this is more it will be more problematic for the person who is suffering from it. Rather than this, severity also plays an important role for the injury caused by it.
A radioactive isotope is an unstable element, which can stabilize itself by emitting alpha,beta or gamma rays.
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