with cells of different types (nerve cell vs. muscle cell), the ___ is the same but different ___ are activated

nucleus

would be most reasonable answer tbh

genetic variation will increase because of a new habitat and food source.

explanation:

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.