Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.
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Darwin was reluctant to publish his ideas because they went so strongly against the ideas of the day. Darwin thought that the society was not yet ready for his ideas, and he knew that there would be a lot of protest.
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Answer: Independent Variable
Explanation: Already explained this one in another post.
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It has a postanal tail.
It has pharyngeal arches.
Answer: The part of the enzyme where the substrate binds is called the active site (since that's where the catalytic “action” happens). ... Thanks to these amino acids, an enzyme's active site is uniquely suited to bind to a particular target—the enzyme's substrate or substrates—and help them undergo a chemical reaction. To catalyze a reaction, an enzyme will grab on (bind) to one or more reactant molecules. These molecules are the enzyme's substrates. In some reactions, one substrate is broken down into multiple products. ... The products then leave the active site of the enzyme.
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