A person who has a significant concentration of blood antigens in his or her perspiration and saliva is referred to as a(n) ___.
What will be an ideal response?
secretor
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Blood sugar is regulated by two pancreatic hormones—insulin and glucagon. When blood sugar rises, insulin is released; it binds to receptors and, through signal transduction, results in an increase in glucose uptake by cells
Blood sugar is regulated by two pancreatic hormonesâ€"insulin and glucagon. When blood sugar rises, insulin is released; it binds to receptors and, through signal transduction, results in an increase in glucose uptake by cells, which effectively lowers blood glucose levels. When blood sugar decreases, glucagon is released, binds to cell receptors, and causes glucose to be released into circulation, thereby increasing blood glucose levels. Diabetes mellitus is a disorder that results from excessively high levels of blood glucose. Type II diabetics have normal to elevated levels of insulin. What, then, might be causing their elevated blood glucose levels? A) inadequate insulin production B) defective receptors C) defective second messenger D) overproduction of glucagon
What on a female has the same embryonic tissue as a male and is very sensitive?
What will be an ideal response?
The largest taxonomic grouping is the
A. kingdom. B. phylum. C. domain. D. family.
The beaker in the illustration below contains two solutions of salt with different concentrations (measured by molarity, M). The two solutions are separated by a membrane that is permeable to both salt and water. Side A has 0.2 M of Salt and Side B has 0.9 M of salt. Which of the following will you observe after a long time has passed?
a) Net diffusion of water from A to B and of salt from B to A. b) Net diffusion of salt across the membrane, but not of water. c) Net diffusion of salt from B to A, but no net diffusion of water. d) Net diffusion of water across the membrane, but not of salt. e) Net diffusion of water from B to A and of salt from A to B. f) No net diffusion of water or salt across the membrane