Animals release carbon dioxide (CO2) into the atmosphere through the process of respiration.
Conservation biology<span> is the management of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions.</span>
Sugar is sucrose and a carbohydrate. It's made up of 3 elements. 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of oxygen. (C^12H^22O^11)
Out of the following given choices;
a. they increase the amount of energy transferred from the
lungs to the blood
b. they increase the flexibility of the lungs as they expand
during inhalation
c. they increase the volume of the lungs, allowing more
oxygen to be inhaled
d. they increase the surface area of the lungs, allowing the
efficient gas exchange
The answer is D. Due to their microscopic nature, they are numerous in the lungs and are also circular-shaped so as to increase the surface area for gaseous exchange.
Other characteristics of alveoli that increase gas exchange are that they thinned-walled (with only a layer of cells) and moist.
Answer:
the bacteria is bad because with that one person it's in difficult time. hem need to take more careful.
