It has only been since 1998 that a method for culturing stem cells has been described
Indicate whether the statement is true or false.
T
Biology & Microbiology
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Which item, A, B, or C, is a gated ion channel in the postsynaptic membrane?
Asian pearl divers hyperventilate in order to reduce the ____ concentration in the blood
a. oxygen b. hydrogen ion c. carbon dioxide d. chloride ion e. hemoglobin
Biology & Microbiology
Which of the following is present in all chordates?
A) A notochord B) An external skeleton C) A vertebral column D) Chloroplasts E) Four limbs
Biology & Microbiology
Xerostomia is the scientific name for "dry mouth." Dry mouth can be a medical concern because chronic dry mouth can lead to dental problems as well as problems tasting, chewing, and swallowing. Dry mouth is likely due to an inadequate production of
A) saliva. B) chyme. C) amylase. D) bile.
Biology & Microbiology