Read the scenario and answer the following questions: a. how could the scenario have been prevented? b. how should the student respond in the scenario to minimize the harm? during an experiment, carin carefully pours solution a from a test tube into a beaker. krystal sneaks up behind carin to wish her a happy birthday. carin accidentally drops the beaker on the floor, shattering it on her uncovered toes.

Explanation:

The scenario could have been prevented following some simple rules, first Krystal should have not sneakily approached her classmate Carin knowing that in the laboratory students use substances that can be potentially dangerous, secondly, while working in the lab students must use closed shoes to prevent having contact with substances or broken glass if an accident happens.

To minimize the harm students must identify the substance spilled and notify the authorities, based on the nature of the substance you'll decide what will be the next step, you'll most likely need to use the showers in the lab and then go to the nursery.

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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

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