The part of an animal cell that serves as barrier between the cell and its environment is the A. nucleus. B. cytoplasm. C. mitochondria. D. cell membrane.

The part of an animal cell that serves as barrier between the cell and its environment is the cell membrane

Explanation:

Cell membrane determines what materials enters the cell, it control every inflow and outflow of a cell

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.