Increasing the number of capillaries associated with alveoli would be expected to increase carbon dioxide being carried to alveoli.
Alveoli are the very small air sacs at the end of the bronchioles. Each alveolus is cup-shaped with thin walls, and It is surrounded by networks of blood vessels which are called as capillaries that also have very thin walls. The oxygen we breathe gets into the blood through the alveoli and capillaries. The Red blood cells travel through the capillaries. Alveoli's walls share a membrane with the capillaries. Oxygen and carbon dioxide get in and move freely between the human respiratory system and the bloodstream.
Oxygen molecules are attached to red blood cells, which travel back to the heart, and at the same time, carbon dioxide molecules in the alveoli get out of the body.
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Surface currents pick up on energy from the ocean floor. As they travel, they move around energy from one place to another. This affects the climate in its environment.
Ionic bonds are when atoms gain or lose electrons, giving it a charge (positive or negative), A covalent bond shares electrons and gets a neutral charge.
Therefore, our answer is D.
Final answer:- <span>D. sharing of electrons between atoms.</span>
Answer:
hope it will help you
Explanation:
For instance, carbohydrates are broken down by amylase, sucrase, lactase, or maltase. Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. Lipids are broken down by lipases. Breakdown of these macromolecules provides energy for cellular activities.
When we ingest food, we ingest several types of organic macromolecules that we use for nutrition and energy. These macromolecules are carbohydrates, proteins and lipids.
Answer:
Carbon, Hydrogen, Oxygen, Nitrogen
Explanation:
The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen. With carbon and hydrogen present, other elements, such as phosphorous, sulfur, silicon, and the halogens, may exist in organic compounds.
