Osmotic pressure occurs as a result of
What will be an ideal response?
differences in tonicity
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All of the following traits are shared by all great apes, except ________
A) increased flexibility of the wrist and thumb B) spoken language C) absence of a tail D) increased flexibility of hips and ankles E) relatively large brains
Natural killer (NK) cells are a type of:
A. Lymphocyte B. Helper Cell C. Monocyte D. Phagocyte
What is the metabolic abnormality that underlies the characteristic symptoms of diabetes mellitus, such as frequent urination?
A) a failure of the kidney tubules to reabsorb enough glucose from the urine B) a failure of the gastrointestinal epithelium to absorb enough glucose from food C) an inability of the body's cells to retain glucose they have absorbed from the blood D) an inability of the body's cells to absorb enough glucose from the blood
Which of the following is the best definition of "microbial antagonism"?
A. the presence of pathogens on the surface of the skin, which will invade the body through abrasions B. the presence of normal microbiota that protect the body by competing with pathogens in a variety of ways to prevent pathogens from invading the body C. the presence of normal microbiota that can become pathogens under certain conditions D. the ability of microbiota to mutate into pathogens E. the presence of resident bacteria on the surface of the body and in cavities that connect to the surface