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.

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

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The answer is true a geyser can reach up to 205 degrees fahrenheit