The arrival of chyme in the duodenum initiates a vagal reflex in which pancreatic acinar cells are stimulated to release digestive enzymes by the neurotransmitter

True, is your answer, i believe.

The product of 5 rational numbers is positive. at most "five" of these rational numbers can be negative.hope my answer has you : )

Amoxicillin - amoxicillin, doxycycline, and cefuroxime have all been shown to have equivalent efficacy for treatment of lyme disease. however, because this patient is only 6 years old, he should not be given doxycycline as a first line treatment unless the other regimens are contraindicated. macrolides, like azithromycin should not be used first line because they are poorly effective at eradicating infection. they may be used in patients who are intolerant of penicillins and cephalosporins and who cannot take doxycycline. first generation cephalosporins like cephalexin are not effective.

the statement is false.

unlike ornamentals, usda plant hardiness zones are not used to identify microclimatic adaptation for turfgrasses.

turfgrass zones follow humidity and temperature contour lines. the eleven plant hardiness zones of usda are primarily used to identify adaptation areas for trees and other plants.