C It controls what is allowed to enter or leave the cell.
Inertia. The reason why is because of Newton's First Law Of Motion, when you let go of the cart when you push on it, it will continue to roll until gravity, friction, and wind resistance eventually stops the cart.
A functional adaptation is any adaptation that helps an organism survive.
Hence, the correct answer is option D - the color and shape of a flounder allow it to camouflage.
This adaptation allows animals to camouflage with colors, patterns, and body shapes. Both predators and preys can process camouflage.