Which best describes thermal energy?

it is the difference between internal energies of two or more substances.
it is the sum of internal energies of two or more substances.
it is the portion of internal energy that can be transferred from one substance to another.
it is the portion of potential energy that can be transferred from one substance to another.

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.