The main symptom of GERD is
a. diarrhea.
b. constipation.
c. chyme backing up into the esophagus.
d. reduction of bile.
e. rectal bleeding.
C
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Your phagocytes produce transmembrane proteins called toll-like receptors (TLR), but your mast cells do not because _____________
A. your phagocytes carry the genetic information to make TLRs but your mast cells do not. B. your phagocytes run transcription and translation but your mast cells only run transcription. C. some of your body's cells contain ribosomes but most do not. D. your phagocytes express some genes that are not expressed in your mast cells (and visa versa).
How do the characteristics of life apply to situations such as individuals on life support, organs on life support, frozen organisms (including embryos), genetically engineered organisms, test tube babies, and hybrids between computers and living things?
What will be an ideal response?
The outermost region of the kidney is called the:a
adventitia. b. mucosa
c. pelvis. d. cortex. e. medulla.
Incest avoidance evolved in humans:
a. because breeding among close relatives leads to a higher proportion of offspring with genetic defects and, consequently, reduced fitness. b. as part of a larger fixed action pattern. c. because many bees, wasps, and ants can inflict painful, and even fatal, stings and bites. d. because in early human societies, alliances could be achieved by marrying the chief's daughter to the son of the chief of a different tribe. e. because breeding among close relatives leads to a higher proportion of offspring with increased fitness.