The formation of an action potential can be divided into five steps. (1) A stimulus from a sensory cell or another neuron causes the target cell to depolarize toward the threshold potential. (2) If the threshold of excitation is reached‚ all Na+ channels open and the membrane depolarizes. (3) At the peak action potential‚ K+ channels open and K+ begins to leave the cell. At the same time‚ Na+ channels close. (4) The membrane becomes hyperpolarized as K+ ions continue to leave the cell. The
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How well did you meet your individual food recommendations (food groups‚ amounts‚ variety)? I did not meet my individual food recommendations very well. For grains‚ I reached my food recommendations more than any other food group. Since‚ I come from a Vietnamese household‚ rice is eaten at almost every meal; however‚ the rice we eat is white jasmine rice which is a refined grain. On that particular week‚ I frequently ate peanut butter sandwiches for lunch which contributed to my grains. I rarely
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Ida B. Wells is one of the most iconic African American women reformists that boldly challenged social injustices and demand for equality. She was raised in Holy Springs‚ Mississippi that was freed from slavery through the Emancipation Proclamation. Granted educational opportunities her enthusiasm to learn and the search for the truth grew which led her to many achievements on being a teacher‚ businesswomen‚ newspaper columnist‚ and investigative journalist. The best achievement though was her international
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Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The cardiac muscle is capable of which of the following? You correctly answered: c. autorhythmicity 2. Phase 2 of the cardiac action potential‚ when the calcium channels remain open and potassium channels are closed‚ is called the You correctly answered: a. plateau phase. 3. Which of the following is true of the cardiac action potential? You correctly answered: b. The cardiac action potential is longer than the
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main purpose of the economic stimulus package was to prevent the re-emergence of the panic that gripped investors in 2008. It also aimed to restore trust in the finance industry by further limiting bonuses for senior executives for companies that received TARP funds (Recovery.gov). The $787 billion economic stimulus package was approved by Congress in February‚ 2009. The plan was to jumpstart economic growth‚ and save between 900‚000 - 2.3 million jobs. The economic stimulus bill allocated funds as follows:
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Athletes are required to receive a preparticipation physical in order to identify the possibility of asthma. These evaluations obtain a history from the athlete‚ such as symptoms that they may experience‚ family history of asthma‚ or personal history of allergies or allergic rhinitis. However‚ because history alone is not always reliable‚ there are lung function tests used to determine if an athlete has asthma including spirometry testing‚ challenge testing‚ stress electrocardiogram‚ or upper airway
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Stimulus: Discoveries and discovering can offer new understandings and renewed perceptions of ourselves and others. Redemption "And if you fail to uphold your end of the deal‚ the consequences for you will be apocalyptic‚" Niklaus slammed the phone down onto the table after he had finished threatening whoever was on the other side of the line. "You’re not a people person are you‚ Niklaus?" Elijah‚ Niklaus’ brother sarcastically asked as he made his way through the door of the home they shared
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Dear 7th grade math student‚ I am writing this letter to you to explain who Pythagoras was and how his mathematical findings influence your life. Pythagoras was born about 569 B.C. in Samos‚ Ionia to his parents Mnesarches and Phthais (“Pythagoras of Samos”). It is believed that Pythagoras had two brothers‚ however some accounts say he had three (“Pythagoras of Samos”). Pythagoras was a very well educated man. Through his childhood‚ he learned to play the lyre and was taught many things by the three
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Ida B Wells was born on July 16th 1962 in Holly Springs‚ Mississippi. Ida’s parents were slaves‚ so Ida was born a slave. When Ida was only 6 months old her and her family were declared free because of the Emancipation Proclamation. Both of her parents were active in the Republican Party. Ida’s father James helped start Shaw university‚ which was a school for newly freed slaves. It was at Shaw University that Ida received her early schooling‚ however she had to drop out at the young age of 16 when
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assess the extent to which attempts at prediction and mitigation may have influenced the impact of the hazard. An earthquake is the result of a sudden release of energy in the Earth’s crust that creates seismic waves. Earthquake is a major threat to the human and natural environments‚ in which people died‚ buildings collapsed and cities destroyed. Prediction and mitigation are usually conducted in order to reduce the impact of an earthquake on environment. Earthquake prediction can be carried out
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