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1. a hypothetical drug is administered which dilates blood vessels in the periphery (decreasing resistance) without directly affecting other tissues. Which of the following will occur as a consequence of administering this drug?
a. an increase in blood pressure and an increase in cardiac outputb. an increase in blood pressure and decrease in cardiac outputc. a decrease in blood pressure and increase in cardiac outputd. a decrease in blood pressure and decrease in cardiac output
2. Another hypothetical drug decrease heart rate without directly affecting any other cardiovascular parameter has been injected into a group of rats. what changes in cardiac output (CO), blood pressure (MAP) and resistance (TPR) would be expected?
a. decreased CO, increased MAP, increased TPRb. increased CO, increased MAP, decreased TPRc. increased CO, decreased MAP, decreased TPRd. decreased CO, decreased MAP, increased TPR
How many pairs of genes regulating tail length character. Adding of H+ or OH- to a reaction increased its overall rate indicating the rate limiting step was the addition of H+ or OH- to the intermediate. Is this really true? Why or why not.
Why does a defective CFTR lead to decrease hydration of the mucus layer in the airways?
Discuss how plants manipulate pollinators and seed dispersors to make them "work" for the benefit of the plant. Provide specific examples of co?evolutionary scenarios where plants and their pollinators/seed dispersors have gone through parallel an..
A wild cherry tree has 5 pairs of chromosomes in its nucleus found in a cell in the vascular cambium.Describe the appearance of the chromosomes during the metaphase stage of meiosis I and meiosis II of the megaspore mother cell.
When macrophages encounter invading cells, they release interleukin-1, which is carried to the brain by the circulatory system.
Predict whether or not growth will be observed on the LB and the LB Amp+ media inoculated last week with the heat-killed AR and live AS cell mixture. Provide a rationale for your predictions.
The most common primary malignant tumor of bones is called.
Determine the pathophysiology for intrinsic vs extrinsic asthma? Are they both IgE mediated and Write out the overall chemical reaction of cellular respiration.
Humans are parts of food chains and food webs, too. Where on a food web would you typically find humans (near the bottom with the producers, at the top with carnivores, or somewhere in between)?
Would you expect cancer to arise more often in types of cells that divide frequently (i.e. skin cells) or in types of cells that divide rarely or not at all
Assume you work with petunias and you have identified a single gene that causes their flowers to either be all pigmented (solid), or streaked with white.
Draw the tRNA molecules that will be used in the translation of the gene. "stick figures" are acceptable.
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