H pkeaseBased on what you learned about the roller coaster ride, which of the following statements
about energy transformations are true? Select all that apply.
Only gravitational potential energy can be
converted into kinetic energy.
A change in an object's speed is evidence that the
object's kinetic energy is changing.
Kinetic energy can be converted into several other
types of energy.

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart