Answer:
Dead zones are hypoxic (low-oxygen) areas in the world's oceans and large lakes, caused by "excessive nutrient pollution from human activities coupled with other factors that deplete the oxygen required to support most marine life in bottom and near-bottom water. (NOAA)".
Explanation:
Answer:
You're answer is D, ATP+P
Explanation:
Air must pass from the back to the front of the pharynx to enter the trachea and food must pass from the front to the back of the esophagus
Khan Academy is great! Also, Alison (it's a website) has some free courses as well.