The House of Representatives elects the Speaker of the House on the first day of every new Congress and in the event of the death, resignation or removal from the Chair of an incumbent Speaker. The Clerk of the House of Representatives requests nominations: there are normally two, one from each major party (each party having previously met to decide on its nominee). The Clerk then calls the roll of the Representatives, each Representative indicating the surname of the candidate the Representative is supporting. Representatives are not restricted to voting for one of the nominated candidates and may vote for any person, even for someone who is not a member of the House at all. They may also abstain by voting ''present''.
does the president choose the speaker of the house?
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Answer: no

In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. The congruence of opposite sides and opposite angles is a direct consequence of the Euclidean parallel postulate and neither condition can be proven without appealing to the Euclidean parallel postulate or one of its equivalent formulations.
does a parallelogram have to have equal sides?
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Answer: yes

Although showing fermentation to be the result of the action of living microorganisms was a breakthrough, it did not explain the basic nature of the fermentation process, or prove that it is caused by the microorganisms that appear to be always present. Many scientists, including Pasteur, had unsuccessfully attempted to extract the fermentation enzyme from yeast. Success came in 1897 when the German chemist Eduard Buechner ground up yeast, extracted a juice from them, then found to his amazement that this ''dead'' liquid would ferment a sugar solution, forming carbon dioxide and alcohol much like living yeasts. Buechner's results are considered to mark the birth of biochemistry. The ''unorganized ferments'' behaved just like the organized ones. From that time on, the term enzyme came to be applied to all ferments. It was then understood that fermentation is caused by enzymes that are produced by microorganisms. In 1907, Buechner won the Nobel Prize in chemistry for his work.
the fermentation of sugar to alcohol can take place only if living yeast cells are present?
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Answer:
no