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In addition to numerous articles on mathematics, Whitehead wrote three major books on the subject: A Treatise on Universal Algebra (1898), Principia Mathematica (co-written with Bertrand Russell and published in three volumes between 1910 and 1913), and An Introduction to Mathematics (1911). The former two books were aimed exclusively at professional mathematicians, while the latter book was intended for a larger audience, covering the history of mathematics and its philosophical foundations. Principia Mathematica in particular is regarded as one of the most important works in mathematical logic of the 20th century.
How many books on mathematics did Whitehead write?
A: three

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A parasitic relationship is one in which one member of the association benefits while the other is harmed. This is also known as antagonistic or antipathetic symbiosis. Parasitic symbioses take many forms, from endoparasites that live within the host's body to ectoparasites that live on its surface. In addition, parasites may be necrotrophic, which is to say they kill their host, or biotrophic, meaning they rely on their host's surviving. Biotrophic parasitism is an extremely successful mode of life. Depending on the definition used, as many as half of all animals have at least one parasitic phase in their life cycles, and it is also frequent in plants and fungi. Moreover, almost all free-living animals are host to one or more parasite taxa. An example of a biotrophic relationship would be a tick feeding on the blood of its host.
What is it called when organisms are lethal to their host?
A: necrotrophic

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In late 1994, Marvel acquired the comic book distributor Heroes World Distribution to use as its own exclusive distributor. As the industry's other major publishers made exclusive distribution deals with other companies, the ripple effect resulted in the survival of only one other major distributor in North America, Diamond Comic Distributors Inc. In early 1997, when Marvel's Heroes World endeavor failed, Diamond also forged an exclusive deal with Marvelgiving the company its own section of its comics catalog Previews.
Exclusive deals for distributing comics during the 1990s left this company as the only unaffiliated one.
A: Diamond Comic Distributors Inc

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Preschools provide education from ages approximately three to seven, depending on the country, when children enter primary education. These are also known as nursery schools and as kindergarten, except in the US, where kindergarten is a term used for primary education.[citation needed] Kindergarten "provide[s] a child-centered, preschool curriculum for three- to seven-year-old children that aim[s] at unfolding the child's physical, intellectual, and moral nature with balanced emphasis on each of them."
Whats the atypical age range for pre-school?
A:
unanswerable