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1. Vasoconstriction is a _______________ response. A) sympathetic B) parasympathetic 2) What is the stimulus that causes depolarization of baroreceptors (i.e., specialized neurons that monitor pressure in major arteries)? A) Binding of chemicals to ligand-gated channels in the baroreceptor membrane. B) Binding of chemicals to mechanical-gated channels in the baroreceptor membrane. C) Stretch of arterial walls that forces open ligand-gated channels in the baroreceptor membrane. D) Stretch of arterial walls that forces open mechanical-gated channels in the baroreceptor membrane. 3) Which of the following events are considered visceral motor? Choose ALL that apply. A) Increase of action potentials from baroreceptors to brain cardiovascular control centers B) Release of acetylcholine from cardioinhibitory neurons C) Neurons stimulating the release of epinephrine and norepinephrine to cause vasoconstriction D) Communication between neurons WITHIN the cardiovascular control centers of the medulla (hindbrain) 4) An increase in cardiac output will help to lower blood pressure. A)True B)False 5) The visceral motor events completed (either sympathetic or parasympathetic) to help return the blood pressure to a homeostatic setpoint are part of ________________ feedback loops. A)Negative B)Positive
The enzymes are present to catalyze the reactions. the following are sequential enzyme reactions in a pathway - the cells immediately downstream from the thrombus were deprived of oxygen and , as a result, increased:
Dogs (Canis lupus familiaris) and gray wolves (Canis lupus) can interbreed to produce viable, fertile offspring. These species shared a common ancestor recently.
A flower breeder analyzed that a cross between true-breeding red tulips and true-breeding white tulips makes all red-flowering F1 offspring.
Jimmie's Produce put out a bin of tomatoes having beautiful red color and looking "just right" in terms of ripeness. A sign above the bin identified them as genetically engineered produce. Most shoppers selected unmodified tomatoes in the neighbor..
The fat soluble hormones are transported in blood by. Which of the following chemical messengers diffuse to itstarget cell?
A case-control study was done in order to estimate the interrelationships between different risk factors for the myocardial infarction (heart disease).
Some animals have a very broad, varied diet, while others have very specialized diets. Which type of diet do you think will allow an animal to adapt to climate change the easiest? Explain your answer.
When using the low power objective to examine an object, what is the total magnification of the image seen?
What is the approximate molecular weight of a protein with 682 amino acid residues in a single polypeptide chain?
If sigma(70) and RpoS recognize different promoter sequences, and some genes have both a sigma(70) promoter and an RpoS promoter, then explain how either sigma factor could activate transcription of those genes.
Draw the tripeptide His Glu Ala, with charges, at pH 5. Recognize the C-terminus, the N-terminus, a peptide bond.
Briefly discuss the differences between the bacteria on microbial electrochemical system anode and cathode, regarding to their electron donor, electron acceptor, carbon sources, and respiration mechanisms.
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