The human stomach break down food for digestion.
which statement best describes the stomach?
a. it is part of a cell with a specific function.
b. it is a single cell that performs a life function.
c. it is made up of a small number of cells that perform a
single function.
d. it is composed of millions of cells of several types working
together to perform a function.

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explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.