Cells can regulate different processes in two ways. They can turn on and off the genes that make enzymes, or they can A) regulate the enzymes that are already made.
B) increase the activation energy of a reaction.
C) increase the amount of energy needed to carry out the preferred process.
D) decrease the amount of energy needed to carry out the preferred process.

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

In salt water solution, the salt is the blank

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?