Cellular respiration is the process in which water and carbon dioxide are waste products.
Answer:
The correct answer is option a, that is, pulmonary vein.
Explanation:
After getting discharged from the left toe, the molecule of carbon dioxide is exhaled through the nose, and in the process, it moves via the trachea, the alveoli, the right ventricle, and the right atrium. However, it does not passes through the pulmonary vein as the prime function of the pulmonary vein is to carry oxygenated blood obtained from the lungs and to pass it to the heart's left atrium.
The pulmonary vein is different from other veins found within the body, which carries deoxygenated blood or blood filled with carbon dioxide from different parts of the body to the heart. Thus, it is clear that carbon dioxide does not pass through the pulmonary vein.
Answer:
Option A) Simple Prokaryotes.
Explanation:
- The first life that existed on Earth was the single-celled microbes who lack a well defined nucleus and are known as Prokaryotes
- They existed on Earth for almost four billion years ago.
- In Prokaryotes "Pro" means before and "Karyon" means nucleus which means they lacked nucleus and many other cell organelles that complex structures have.
- They are single celled organism adaptive of living in earth older environment.
Result: Simple Prokaryotes was the first life on earth.
It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues. forming blood clots to prevent excess blood loss.
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The birth rate and the infant mortality rate
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