Which of the following statements about epinephrine is true?
A. The effects of epinephrine are long-lasting (days to weeks).
B. Epinephrine increases blood pressure.
C. Epinephrine increases GI tract activity.
D. Epinephrine is a chemical of the parasympathetic nervous system.
E. Epinephrine decreases heart rate.
Answer: B
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Understanding the evolution of endothermy requires the resolution of a paradox: Increasing the resting metabolic rate can provide heat to raise the body temperature, but without insulation (hair or feathers) that heat is rapidly lost to the
environment. But a layer of insulation does not benefit a vertebrate unless the animal has a high metabolic rate. Discuss the evidence suggesting that Mesozoic synapsids and sauropsids had developed both high metabolic rates and insulation, and identify the puzzling gaps in the information currently available.
From what else, besides physical trauma, does the skin provide protection?
What will be an ideal response?
The transfer of information from DNA to messenger RNA (mRNA) is known as ________.
A. transmutation B. transduction C. transcription D. translocation E. translation
Over time, diffusion results in the even distribution of a substance throughout an area.
Answer the following statement true (T) or false (F)