Answer:
a.)
Explanation:
The dense cold salty water from the south sinks to the bottom of the ocean.
Absorbing CO2 into the blood is a part of the respiratory system!
The primary function of lymph nodes is the filtering of lymph to identify and fight infection.
<span>Hydroelectric energy has a larger environmental impact than coal use. They both impact the environment, but coal is more wasteful a toxic I believe. This was answered on another question on this site, so I thought i'd just post it up here. Cx Thanks!</span>
Answer:
Respiratory epithelial cells line the respiratory tract from trachea to bronchi into bronchioles and alveolar sacs. ... The goblet cells produce and secrete mucous to trap pathogens and debris within the airway tract. Basal cells are progenitor cells that differentiate into cells types found within the epithelium.