Humans have microscopic subunits in the kidneys called <span>nephrons to filter blood, and spiders have </span><span>Malpighian</span><span> tubes to absorb salts and wastes. Hope this helped! :)</span>
The diagram given here describes the process - The alveolus is a part of the lung and assists with gas exchange. The goal is to get gases into and out of the cells, so they enter our body, go to our lungs and then diffuse into our blood and travel to our cells through our circulatory system.
The alveolus or alveoli are tiny air sacs which is a hollow cup-shaped cavity in the lung parenchyma. It functions as the respiratory unit. It helps in gaseous exchange to and from the lungs.
- The gaseous exchange takes place with these sacs.
- Diffusion is the process that takes place in this exchange
- In this process, oxygen moves from a high concentration area to a low concentration that is alveoli to blood capillaries and then circulates to various cells.
- In the case of carbon dioxide, it reaches near the blood capillaries near the alveoli where it diffuses into the lungs through alveoli.
Thus, the correct description is - The alveolus is a part of the lung and assists with gas exchange. The goal is to get gases into and out of the cells, so they enter our body, go to our lungs and then diffuse into our blood and travel to our cells through our circulatory system.
Learn more about diffusion:
brainly.com/question/14392880
For a gene when its in hard weinberg equilibrium it is not evolving
Parasitism.
There are several types of biotic relationships that is occurring
every single moment in the ecosystem and one is parasitism. In this scenario
with human beings and mosquitos, this phenomenon of interaction is
distinguished as parasitism where mosquitos draws blood that contains nutrients
from the human tissue to use it as its source of food and then leaves harmful
substances and bacteria in the human’s blood stream.