Student A:The first point along the graph where a response above zero (or above the control response) is reached is usually referred to as a threshold-dose. For most beneficial or recreational drugs, the desired effects are found at doses slightly greater than the threshold dose. At higher doses, undesired side effects appear and grow stronger as the dose increases. The more potent a particular substance is, the steeper this curve will be. In quantitative situations, the Y-axis often is designated by percentages, which refer to the percentage of exposed individuals registering a standard response (which may be death, as in LD). Such a curve is referred to as a quantal dose-response curve, distinguishing it from a graded dose-response curve, where response is continuous (either measured, or by judgment).

The threshold on a dose-response curve is the?
Student B:OK... To answer this question, we should know that: The first point along the graph where a response above zero (or above the control response) is reached is usually referred to as a threshold-dose.
The first point along the graph where a response above zero ( or above the control response ) is reached.

Problem:Bangs, also known as a fringe, is a shaped cutting of the front part of the hair so that it lies over the forehead. Bangs are usually cut fairly straight at or above the eyebrows, but can also be ragged or ruffled, spiked up with hair gel, mousse or wax, swept to one side or the other, or cut longer to fall over the eyes.

Answer this question based on the passage: where is the bang or fringe area located?
Solution:OK... This is the relevant information: Bangs, also known as a fringe, is a shaped cutting of the front part of the hair so that it lies over the forehead.
over the forehead.

Student A:This was the final film of Lean's career, and the first feature-film he had directed in fourteen years, since Ryan's Daughter in 1970. Receiving universal critical acclaim upon its release with many praising it as Lean's finest since Lawrence of Arabia, A Passage to India received eleven nominations at the Academy Awards, including Best Picture, Best Director for Lean, and Best Actress for Judy Davis for her portrayal as Adela Quested. Peggy Ashcroft won the Academy Award for Best Supporting Actress for her portrayal as Mrs Moore, making her, at 77, the oldest actress to win the award, and Maurice Jarre won his third Academy Award for Best Original Score.

Actress awarded oscar mrs moore passage to india?
Student B:OK... To answer the question, consider the following: Peggy Ashcroft won the Academy Award for Best Supporting Actress for her portrayal as Mrs Moore, making her, at 77, the oldest actress to win the award, and Maurice Jarre won his third Academy Award for Best Original Score.
Peggy Ashcroft.

Problem:Time in the United States, by law, is divided into nine standard time zones covering the states and its possessions, with most of the United States observing daylight saving time (DST) for approximately the spring, summer, and fall months. The time zone boundaries and DST observance are regulated by the Department of Transportation. Official and highly precise timekeeping services (clocks) are provided by two federal agencies: the National Institute of Standards and Technology (NIST) (an agency of the Department of Commerce); and its military counterpart, the United States Naval Observatory (USNO). The clocks run by these services are kept synchronized with each other as well as with those of other international timekeeping organizations.

Answer this question: how many time zones does the united states have?
Solution:OK... The relevant information is: Time in the United States, by law, is divided into nine standard time zones covering the states and its possessions, with most of the United States observing daylight saving time (DST) for approximately the spring, summer, and fall months.
nine.

Student A:Jai Jawan Jai Kisan ("English: Hail the Soldier, Hail the Farmer") was a slogan of the second Prime Minister of India Lal Bahadur Shastri in 1965 at a public gathering at Ramlila Maidan, Delhi.

Based on this passage, who gave the famous slogan jai jawan jai kisan?
Student B:OK... The relevant information to answer the above question is: Jai Jawan Jai Kisan ("English: Hail the Soldier, Hail the Farmer") was a slogan of the second Prime Minister of India Lal Bahadur Shastri in 1965 at a public gathering at Ramlila Maidan, Delhi.
Lal Bahadur Shastri.

Student A:The US economy is fueled by abundant natural resources, a well-developed infrastructure, and high productivity. It has second highest total estimated value of natural resources, valued at $45 trillion in 2016. Americans have the highest average household and employee income among OECD nations, and in 2010 had the fourth highest median household income, down from second highest in 2007. It has been the world's largest national economy (not including colonial empires) since at least the 1890s. The U.S. is the world's third largest producer of oil and natural gas. In 2016, it was the largest trading nation in the world as well as the world's second largest manufacturer, representing a fifth of the global manufacturing output. The US also has not only the largest economy, but also the largest Industrial sector, at 2005 prices according to the UNCTAD. The US not only has the largest internal market for goods, but also dominates the trade in services. US total trade amounted to $4.92 trillion in 2016. Of the world's 500 largest companies, 134 are headquartered in the US.

Answer this question: when did the united states become the world's largest economy?
Student B:
OK... The relevant information is: It has been the world's largest national economy (not including colonial empires) since at least the 1890s.
since at least the 1890s.