In mammals urine is expelled through the urethra which is part of the excretory system in unicellular organisms waste products are discharged directly through the surface of the cell
Answer:
The pressure that results from the tendency of the lungs to decrease or shrink, while the chest wall seeks to enlarge them is called intrapleural pressure.
Explanation:
The process of pulmonary ventilation involves the existence of a set of opposite pressures that change depending on the phase of the breath in which they are.
The atmospheric pressure tends to be higher than the pulmonary pressure, which allows air to enter the lungs, while in exhalation there is an increase in pressure in the lungs that pushes the air out.
- The tendency of the lungs, due to their elasticity, is to contract or decrease in size.
- The chest wall exerts an attraction effect on the lungs, which prevents them from contracting and keeps them expanded.
- <em>The difference between these opposing pressures is called the </em><em>intrapleural pressure</em><em>, which is a negative pressure, especially during expiration.
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The loss of chest wall integrity, caused by an open wound, causes the lungs to close due to air entering the chest.
Learn more:
Intrapleural pressure brainly.com/question/9209660
The use of biomass energy is inefficient as compared to fossil fuels. Also, the use of such is harmful to the environment. Using animal and human waste to power engines may save on carbon dioxide emissions, but it increases methane gases, which are also harmful to the Earth.
There are
50 protons in tin
50 electrons in tin
And 69 neutrons
Hope this helps
Weak covalent bonds such as the ones in carbohydrates and lipid have A LOT OF POTENTIAL ENERGY.
Potential energy refers to energy stored in a substance. The potential energy in the covalent bond of macro molecules are converted to chemical energy in food, the chemical energy is used by the body system to carry out all the biochemical reactions that will keep the cells alive.<span />