Explanation:
The embryonic stage is the third to the eighth week after fertilization. that should be the ansewr
1. Which structure of the excretory system in humans is responsible for converting ammonia into urea? - Liver is responsible for converting ammonia into urea.
2. Breathing in humans is driven by all of the following except
B. Air Pressure.
Hope I helped. Have a wonderful day.
The graph is showing us the tide height in feet in the left side and the hight up and down.
