no
the cells
because it is the cell wall
Yes, it does.
External respiration is the exchange of gases between each lung and blood. It involves inhaling gases from the organisms external environment, and then exhaling the gases back out.
Unicellular organisms exchange materials through diffusion or active transport across their cell membrane. Multicellular organisms exchange materials through specialized structures like respiratory and circulatory systems that transport gases and nutrients throughout the body, as well as through cellular communication and coordination.
Diffusion is one of the processes of transferring materials within the cells of living organisms. An example of diffusion is the exchange of gases in the lungs.
Not really. Organisms are either one celled or multicelled. Tri-cells can be formed by uni celled organisms for reproduction.
Respiration is the process by which organisms exchange gases, such as oxygen and carbon dioxide, with their environment to generate energy.
Cells are the basic units of life. They range from one celled organisms to multicelled organisms such as us. We are made of between 75-100 trillion cells.
Organ, since it is composed if cells, tissues, molecule, and multi-celled organisms. Multi-celled organisms are only composed of one then one cell.
Humans for one. Its the term for multicelled creatures. Most living organisms, including all animals, plants, fungi, and protists, are eukaryotes.
In the lungs, exchange of gases occurs in the alveoli(sing: alveolus).