The human heart is an organ that is made up of cells. not all of the cells that make up the heart are identical, however. what name is given to a group of similar cells that perform a special function and together make up an organ?
a) embryo
b) organelle
c) system
d) tissue

and after water is usually warmed by the sun the water temperature raises and then evaporates .

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.