The alveolus (singular form) or alveoli (plural
form) are tiny sacs of organs that are attached to the ends of the alveolar
duct. These tiny sacs of air are clumped together that form interconnected
caves, working together as a unit. They are found inside the lungs and they
make the exchange of air easy and possible. Alveoli units are responsible for
putting oxygen into the air that we breathe in. Blood that passes through the
heart and into the lungs are converted into oxygen which will be then
transported by the blood all over the body systems.
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The walls of the alveoli are extremely thin to
enable the quick exchange of gases Aside from this, the linings of alveoli
units are fluid in nature enabling gases to dissolve. </span>
They provide the immune system with "memory" against previously encountered pathogens.
T memory cells are necessary for protective immunity against invading pathogens
Answer:
Answer is C
Explanation:
Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes leading to a variety of cells
Nitrogen in form of soluble nitrite salts
Carbon in form of carbon dioxide
Nitrogen is converted to salts by the action of nitrogen fixation bacteria or can be provided by use of chemical fertilizers or organic fertilizer
carbon dioxide is present in air from where plants influx it from stomata opening in leafs
Answer:
Township and Range Survey System. TOWNSHIP measures the distance NORTH or SOUTH from the BASE LINE which is a designated parallel. A township USUALLY measures SIX MILES in size. The first six miles north of the base line is township one north written T.
Explanation:
