Answer:
d
Explanation:
With gases they escape into the atmosphere so u cant move it around withoulosing some. With liquids sometimes they get spilled or little bit gets left at the bottom of the original container
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.
Answer:
D)
Explanation:
Because the independent variable stays the same for all the people in the experiment