Which of the following statements about inhibitors of enzyme-catalyzed reactions is true? a competitive inhibitor binds irreversibly to the enzyme at the active site. an uncompetitive inhibitor typically affects km but not kcat. an uncompetitive inhibitor will always bind at the active site. reversible inhibitors bind to either free enzyme or the enzyme-substrate complex but not both. a competitive inhibitor does not affect vmax.

a and c are the answeres

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

c.           is the correct answer