Answer:External respiration occurs in the lungs where oxygen diffuses into the blood and carbon dioxide diffuses into the alveolar air. Internal respiration occurs in the metabolizing tissues, where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells.
Explanation:
Usually under ground springs, or sometimes hollowed earth beneath solid earth where the water pools.
Plants, Animals, and bacteria
Answer: Both
Explanation:
Economists use water and fish migration to figure out surroundings and the way the earth is impacted.
Technicians use there knowledge for example depth finders so they can help game wardens entds with lake depth for example. Also for fixing boat motors.
