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Hace 3 días · Biochemistry. Enzymes ( / ˈɛnzaɪmz /) are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.
Hace 1 día · 2024 U.S. presidential election. This is a list of nationwide public opinion polls that were conducted relating to the general election for the 2024 United States presidential election. The people named in the polls are declared candidates or have received media speculation about their possible candidacy.
Hace 3 días · Mutation with double bloom in the Langheck Nature Reserve near Nittel, Germany. In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. [1] Viral genomes contain either DNA or RNA.
Hace 2 días · It refers to the group of people in an individual's life that satisfies the typical role of family as a support system. The term differentiates between the "family of origin" (the biological family or that in which people are raised) and those that actively assume that ideal role.
Hace 4 días · Medicare is a federal health insurance program in the United States for people age 65 or older and younger people with disabilities, including those with end stage renal disease and amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease). It was begun in 1965 under the Social Security Administration and is now administered by the Centers ...
Hace 1 día · v. t. e. The 2012 United States presidential election in Nebraska took place on November 6, 2012, as part of the 2012 United States presidential election in which all 50 states plus the District of Columbia participated. Voters chose five electors to represent them in the Electoral College via a popular vote pitting incumbent Democratic ...
Hace 2 días · Asia is the largest continent on Earth. It covers 9% of the Earth's total surface area (or 30% of its land area), and has the longest coastline, at 62,800 kilometres (39,022 mi). Asia is generally defined as comprising the eastern four-fifths of Eurasia.
