The tiny hollow air sacs in the lungs where gas exchange takes place are the "a. alveoli". These are the "last stop" on the respiratory tree and are responsible for oxygen exchange.
Because the walls of veins have high compliance, they can accommodate a relatively large volume of blood with a relatively small increase in internal pressure.
<h3>What are veins?</h3>
Veins are specific blood vessels of the circulatory system that transport deoxygenated blood to the hearth.
Vein blood vessels have high compliance to increase the volume of blood cells that can be transported.
During this process, the internal pressure of the walls in the vein blood vessel is minimized.
Learn more about veins here:
brainly.com/question/64497
Answer:
<em>What are three measures of life variations?</em>
<em>Species diversity, genetic diversity, ecosystem diversity</em>
Explanation:
<em>Biodiversity</em>
<em>The amount of biological or living diversity per unit area. It includes the concepts of species diversity, habitat diversity and genetic diversity.</em>
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Answer:
The long-term increase in the temperature of the planet Earth due to certain reasons such as human activities is termed as global warming. Global warming is a concern for scientists nowadays as its consequences are very harmful to life on Earth.
Global warming causes climate changes due to which survival in extreme heat conditions will become very difficult in the near future. The greenhouse gases will cause life on Earth to be dangerous as these gases when increase than normal will be toxic. The greenhouse gases are causing the ozone layer to get depleted without which life on Earth will not be possible.
Bacteria, viruses, and fungi are all pathogens that are attacked by the immune system.
