His heart isn't pumping adequately to remove the water from his body due to his weight gain because it takes more for your heart to work correctly if your are over weight
The answer is “it is the gap between neurons” and “it ensures that information travels in one direction only.”
Archaeopteryx had "teeth, three claws on each wing" similar to dinosaurs. So, most appropriate answer would be Teeth & Wings
Hope this helps!
1.57821 *10^5
The answer would be 5.