What sort of receptor do skeletal muscle cells use to receive signals from somatic lower motor neurons? a. Nicotinic
b. Muscarinic
c. Adrenergic
d. Mechanoreceptive calcium channels
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Which of the following is not a way in which a vascular plant's xylem and phloem are similar?

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

What is one reason why transpiration is important in plants? question 19 options: it produces food from the sugar in the plant cells. it enables the flow of water out of the plant. it produces carbon dioxide in the leaves of the plant.