If a car's acceleration is negative, I'd say the car is slowing down.
According to science, D would be the correct answer. Hope this helps!
In the human respiratory system, gas exchange occurs across the cells of the alveoli. Alveoli or an alveolus is the deepest part of the human respiratory system. This part of the respiratory system is a place where gas exchange between oxygen and carbon dioxide occurs from inhaled air to the blood cells<span>.</span>
The head at the top, the tail is just for getting to the egg
