The essential components of the human cardiovascular system are the heart, blood and blood vessels. It includes the pulmonary circulation, a "loop" through the lungs where blood is oxygenated; and the systemic circulation, a "loop" through the rest of the body to provide oxygenated blood.
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Answer:
A protein molecule present in the RBCs, which helps in the transportation of oxygen from the lungs to the different parts of the body and brings back carbon dioxide, that is, collected from different parts of the body back to the lungs is known as hemoglobin.
The general features of hemoglobin are that it comprises four molecules of protein in the form of globulin chains. In adults, the molecules of hemoglobin comprise two beta-globulin chains and two alpha globulin chains, while in infants and fetuses, the beta chains are least found, and is substituted by two gamma chains.
Each globulin chain comprises an essential iron-containing compound porphyrin, which is termed as heme. Together both iron and heme play an essential role in circulating oxygen and carbon dioxide in the blood. This iron gives the red appearance to the blood.
Answer:The genetic code is based upon the reading of how many bases at a time? A. one. B. two. C. three. D. four.
Answer:
agriculture can cause problems such as less housing, cut down of trees to make way for more agricultural things and the animals causes more droughts. But it helps give people food
Explanation:
Answer:
The importance of Forests
Explanation:
Forests is important because it is the first and foremost means to effective climatic change which w all depend upon. It also provides us with enormous amount of food and oxygen for survival.
This leads to the importance of forest conservation effort towards sustaining the climate again changes that are harmful to human existence. It also explains the need to conserve the forest as source of fuel, food and medicine among others.
Some of the particular threats to forest in my areas include excess deforestation and the governments effort to plant a tree advocacy and other forms of re-orientation programmes to educate people against consistent hunting that reduces forest life.
