-Lung volume is the total volume the air occupies in lung during respiration. It is also known as lung capacity. -Air pressure is the pressure of the air in the lungs during inhalation and exhalation. During the process of inhalation, the lung volume expands because of the contraction of the diaphragm and intercostal muscles, thus expanding the thoracic cavity. Because of the increase in lung volume, the air pressure is decreased (Boyle’s law) compared to the atmosphere, thus the air enters the airways. During exhalation, the relaxation of the diaphragm and intercostal muscles causes a decrease in the lung volume, resulting in increased air pressure in the lungs compared to the atmosphere, thus the air moves out of the airways.
The answer is B
A cat that has spots of more than one color is probably a female
When jellyfish are attached to coastal reefs they have a stalked (polyp) phase and a jellyfish (medusa) phase, when they float among the plankton. The jellyfish eggs are fertilized internally and develop into free-swimming planula larvae during the medusa stage. The medusa stage is the reproductive stage. The larvae will then settle on the sea floor after a brief period of floating around the water surface. The larvae will attach themselves at one end, there they then develop into polyps and grow. During the months of spring, some of the polyps will start to bud off immature jellyfish also knows as ephyra larvae. They then grow into mature jellyfish. :)
Answer:
evolved extinction
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