The answer is to this question is (true)
Answer:
Aerophobia
Explanation:
it sounds made up but thats the actual definition for the fear of flight or air travel. I hope this helps!
Digestive system is the correct answer
Answer:
the last choice.
Explanation:
veins have valves because venous pressure is often not great enough( as the blood must overcome gravity and other forces) to return the blood to the heart.
valves mainly prevent the back flow of blood.