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Question: Assume that each excitatory presynaptic neuron causes a 0.5mv depolarization of the postsynaptic neuron, and each inhibitory presynaptic neuron causes a 0.5mv hyperpolarization of the postsynaptic neuron. What would be the effect on the postsynaptic neuron if 87 excitatory neurons and 57 inhibitory pre-synaptic neurons fired simultaneously? SHOW ALL WORKQuestion: What would be the total mv produced by the 87 excitatory neurons (also indicate sign)? ______Question: What would be the total mv produced by the 57 inhibitory neurons (also indicate sign)? ______Question: What would be the net change in voltage and indicate whether it is (+) or (-) ? ______________Question: Assuming that the threshold for generating an action potential is -55 mv and the resting potential is -70mv, is the net change in voltage enough to reach threshold? ______________
Within the two groups defined by bone mass, smaller skeletons have bones with evidence of epiphyseal plates, but the larger skeletons have only a thin line where the epiphyseal plates should be. Give the age group and gender of the four individuals i..
Would analyzing the breakdown of a metabolite like glucose be a useful way to mesure rate of aerobic respiration?
Case Study: A female patient in ER with suspected toxic shock syndrome
In order to separate the RNA you majorly utilize a protein denaturant solution of the guanidinum salts. These chaotropic solutions denature by disrupting the H- bonding.
How a biologist would explain how ability to run fast evolved in cheetahs, assume their ancestors would only run 20 miles per hour. How various total depurinations in your body each day.
While discussing their findings, authors have ignored a main threat to the validity of their estimates of the exposure. Explain and discuss this error.
Why water is known as polar solvent? How is hydrogen bonding involved in cohesive attraction of water molecules? Water molecules also attract other sorts of molecules, particulary ions.Why is this.
What are the major adaptations of amphibians, birds, reptiles and mammals? What are the dissimilar types of animals in these groups? Anmiotic egg,plastron, carapace, snake, lizard, turtle, feathers How did jaws evolve.
Illustrate what is meant by motivation. What types of non-financial reward might a company employ to motivate employees.
Draw up a clearly labelled and appropriate 2 x 2 table to show these data. How many times more likely was a smoker to develop lung cancer than a non-smoker?
While the nurse applies the sharp point of the pin on his arm several times, he is only able to identify these as one "very sharp prick." What would be the most correct explanation for this.
From each of the cell types select ONE structure from each cell that you think has a function that is affected by its location and describe why you think it is affected by its location.
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