<span>The scientific community needs to communicate.
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A universal system reduces the confusion when different systems of measurement are used and makes it easy to compare measurements taken by different persons.
Here’s a real-world example of the confusion that can occur.
In 1983 an Air Canada Boeing 767 temporarily had no working fuel gauges, so the ground crew resorted to calculating the 767's fuel load by hand. They used a procedure similar to calculating the volume of oil in a car by taking a dipstick reading. This gave them the volume. But airlines measure the amount of fuel by mass. They needed the density of jet fuel to make the proper calculations.
The ground crew used 1.77 lb/L as the density, as they had on all other planes in the fleet. But the brand new 767 was metric and used 0.8 kg/L as the density. The plane had only about half the fuel the crew believed they had. The plane ran out of fuel and sank too fast to reach its destination. Only a nearby abandoned Air Force base was a possible landing spot. The crew made a remarkable dead-stick glider landing. There were only minor injuries to the passengers as they used the emergency exits on the plane.
1000 x .20 = 200
1000 - 200 = 800$ take home
Answer:
a. Water, urea, mineral salts and pigments
Explanation:
The composition of urea of a normal healthy human consist of Water, urea, mineral salts and pigments. The water which is present in excess amount in our body will be removed by the body. Our body need salts in low amount which is taken from the food while the excess amount of salts and some pigments in the foods are also removed through the process of excretion and added into the urine. Due to these pigments, the color of urine is yellowish.
<span>A behavior that comes at a cost to the individual performing it and benefits another.
Behavior any and all of the actions performed by an organism, often in repines to its environment or to the action of another organism. An action or signal on the part of one organism that alters the behavior of another organism.An innate sequence of behaviors, triggered under certain conditions, that requires no learning, does not vary, and once begun runs to completion; an example is egg-retrieval in geese. The process, extremely uncommon in nature, which brings about an increase in the frequency of alleles for traits (e.g., behaviors) that are beneficial to the persistence of the species or population while simultaneously being detrimental to the fitness of the individual possessing the trait (or engaging in the behavior).</span>