Compare negative and positive feedback and explain why negative feedback is important in homeostasis
What will be an ideal response?
Negative feedback is a process that restores a factor to normal by moving the factor in the opposite direction of the initial change. Negative feedback is the basis for homeostasis because it returns factors to normal values. Positive feedback, on the other hand, enhances or amplifies the initial change and continues to drive the system in the direction of the initial change.
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True or False? The term mass describes the material that makes up all living and nonliving things.
Answer the following statement true (T) or false (F)
Sami has been hospitalized with acute gastritis. Her symptoms were epigastric pressure (just above the stomach), headache, nausea, and vomiting. She revealed that she had been suffering back pain and drank four shots of gin and took three aspirin to "kill the pain." What led the physician to make this diagnosis, and what may have caused the sudden attack?
What will be an ideal response?
Peroxisomes form ________ from molecular oxygen and the hydrogen atoms stripped from the toxic molecule
Fill in the blank(s) with correct word
Which of the following correctly traces blood flow from the renal artery into the renal cortex?
A. Arcuate a. ? interlobar a. ? afferent arteriole ? interlobular a. B. Segmental a. ? arcuate a. ? interlobar a. ? interlobular a. C. Afferent arteriole ? interlobular a. ? arcuate a. ? interlobar a. D. Segmental a. ? interlobar a. ? arcuate a. ? interlobular a. E. Interlobar a. ? interlobular a. ? segmental a. ? arcuate a.