Problem: Please answer a question about the following article about Annelid:
It is thought that annelids were originally animals with two separate sexes, which released ova and sperm into the water via their nephridia. The fertilized eggs develop into trochophore larvae, which live as plankton. Later they sink to the sea-floor and metamorphose into miniature adults: the part of the trochophore between the apical tuft and the prototroch becomes the prostomium (head); a small area round the trochophore's anus becomes the pygidium (tail-piece); a narrow band immediately in front of that becomes the growth zone that produces new segments; and the rest of the trochophore becomes the peristomium (the segment that contains the mouth).
What releases sperm from annelids?
A: nephridia


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Much of El Salvador was home to the Pipil, the Lenca, Xinca, and Kakawira. The Pipil lived in western El Salvador, spoke Nawat, and had many settlements there, most noticeably Cuzcatlan. The Pipil had no precious mineral resources, but they did have rich and fertile land that was good for farming. The Spaniards were disappointed not to find gold or jewels in El Salvador as they had in other lands like Guatemala or Mexico, but upon learning of the fertile land in El Salvador, they attempted to conquer it. Noted Meso-American indigenous warriors to rise militarily against the Spanish included Princes Atonal and Atlacatl of the Pipil people in central El Salvador and Princess Antu Silan Ulap of the Lenca people in eastern El Salvador, who saw the Spanish not as gods but as barbaric invaders. After fierce battles, the Pipil successfully fought off the Spanish army led by Pedro de Alvarado along with their Mexican Indian allies (the Tlaxcalas), sending them back to Guatemala. After many other attacks with an army reinforced with Guatemalan Indian allies, the Spanish were able to conquer Cuzcatlan. After further attacks, the Spanish also conquered the Lenca people. Eventually, the Spaniards intermarried with Pipil and Lenca women, resulting in the Mestizo population which would become the majority of the Salvadoran people. Today many Pipil and other indigenous populations live in the many small towns of El Salvador like Izalco, Panchimalco, Sacacoyo, and Nahuizalco.

What people resulted from the Spaniards intermarrying with Pipll and Lenca women?
Answer: Mestizo


Problem: The Franco-Prussian War or Franco-German War (German: Deutsch-Französischer Krieg, lit. German-French War, French: Guerre franco-allemande, lit. Franco-German War), often referred to in France as the War of 1870 (19 July 1870 – 10 May 1871), was a conflict between the Second French Empire and the German states of the North German Confederation led by the Kingdom of Prussia. The conflict was caused by Prussian ambitions to extend German unification. Some historians argue that the Prussian chancellor Otto von Bismarck planned to provoke a French attack in order to draw the southern German states—Baden, Württemberg, Bavaria and Hesse-Darmstadt—into an alliance with the North German Confederation dominated by Prussia, while others contend that Bismarck did not plan anything and merely exploited the circumstances as they unfolded.
Which Prussian chancellor's motives in the conflict are still disputed?
The answer is the following: Otto von Bismarck


In almost all modern computers, each memory cell is set up to store binary numbers in groups of eight bits (called a byte). Each byte is able to represent 256 different numbers (28 = 256); either from 0 to 255 or −128 to +127. To store larger numbers, several consecutive bytes may be used (typically, two, four or eight). When negative numbers are required, they are usually stored in two's complement notation. Other arrangements are possible, but are usually not seen outside of specialized applications or historical contexts. A computer can store any kind of information in memory if it can be represented numerically. Modern computers have billions or even trillions of bytes of memory.
How many numbers can a byte represent?
256 different numbers


Input: Samurai
In December 1547, Francis was in Malacca (Malaysia) waiting to return to Goa (India) when he met a low-ranked samurai named Anjiro (possibly spelled "Yajiro"). Anjiro was not an intellectual, but he impressed Xavier because he took careful notes of everything he said in church. Xavier made the decision to go to Japan in part because this low-ranking samurai convinced him in Portuguese that the Japanese people were highly educated and eager to learn. They were hard workers and respectful of authority. In their laws and customs they were led by reason, and, should the Christian faith convince them of its truth, they would accept it en masse.

In what language did Anjiro speak to Xavier?
Output: Portuguese


Problem: Please answer a question about the following article about Planck constant:
The X-ray crystal density method is primarily a method for determining the Avogadro constant NA but as the Avogadro constant is related to the Planck constant it also determines a value for h. The principle behind the method is to determine NA as the ratio between the volume of the unit cell of a crystal, measured by X-ray crystallography, and the molar volume of the substance. Crystals of silicon are used, as they are available in high quality and purity by the technology developed for the semiconductor industry. The unit cell volume is calculated from the spacing between two crystal planes referred to as d220. The molar volume Vm(Si) requires a knowledge of the density of the crystal and the atomic weight of the silicon used. The Planck constant is given by
Calculating molar volume requires knowledge of what two factors?
A:
the density of the crystal and the atomic weight of the silicon used