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Assume that you have a stock solution of epinephrine at a concentration of 1mg/ml. Further assume that there are 20 drops/ml. a. Calculate the number of drops of the stock solution that must be added to a smooth muscle bath containing 25 ml of Locke's solution so that the final concentration of epinephrine in the muscle bath will be 100?grams/ml. b.Compute the dilution factor which describes that extent to which a single drop of stock drug solution is diluted when added to the smooth muscle bath.
Assume that a spherical cell, with a diameter of 24 ?m, has spherical mitochondria, each with a diameter of 0.24 ?m. If mitochondria occupy 13.7% of the volume of the cell, how many mitochondria are there?
Suppose that the breeder selects plants that mature in 69 days for the next generation. Approximation the time required for the next generation to mature. What kind of infection do you believe she has in this hand.
Imagine looking during a microscope at a squashed onion root tip. The chromosomes of many of cells are plainly visible. In some cells, replicated chromosomes are aligned along center (equator) of the cell. These particular cells are in which stage of..
Calculation of amount of phenol red in micrograms present in 3ml of the solution, you will require to use the following data: the concentration of the unknown 5.0 micromoles, volume = 3ml, MW of phenol red = 376.4g.
Explain the plant life, animal life, and geology of the ecosystem in the area in which you live. What populations and communities are there? How dependent is your community on this ecosystem? What are the limiting factors of ecosystem.
In Drosophila melanogaster flies may have red or plum eye color, and normal or stubble bristles. The progeny of a mating between two plum.
How can 2 pairs of DNA loci be the same physical distance (in base pairs) apart, but vary in genetic distances (recombination frequency)?
Based on the data, was the hypothesis supported, and what can you conclude from this experiment?
Often right parietal damage cause hemispatial neglect. Describe 2 deficits that may be displayed.
Explain breast care after delivery. Explain the actions of prolactin, where it is produced, and what causes its release.
Determine which of the following molecules or substances contain, or are derived from, fatty acids?
The ______ avoids backflow of blood from right ventricle into right atrium. The ______ valve avoids the backflow of blood from aorta into left ventricle. The ______ valve avoids the backflow of blood from the pulmonary artery into the ______.
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