The answer is C) 550 I think
The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. ... The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs.
Answer:
C. The upper part of the water column represents areas of high sunlight penetration.
Explanation:
I just took the test and checked my answers.
Answer:
All of the Above
Explanation:
You can see the craters and mountain ranges from here, and flat lava flows used to be there.