This is simply a protective mechanism of the body. A person with blood group A will produced antibodies against blood group B because group B cells are considered foreign bodies to the person and will not be tolerated and vice versa. Group B people have antibodies against group A and will not tolerate group A cells. This is why group A person can only be transfused with group A blood or group O blood. Both A and B have no antibodies against blood group O. Indeed no blood group has antibodies against Blood group and this is why people with blood group O are called universal donors.
Group AB people do not have antibodies against any blood group because both these groups are part and parcel of their body and production of antibodies against either A or B would end up in self destruction of the body. Group AB people are known as universal recipients because they can receive blood from any of the other groups.
2 28sjshshw7hshshssusjsusijsj yes
There are choices for this question, namely:
a. amino acids, fatty acids, and glucose
b. glycerol, protein, and glucose
c. fatty acids, amino acids, and pepsin
d. amino acids, fiber, and glycerol
e. glucose, pepsin, and cholesterol
The correct answer is "amino acids, fatty acids, and glucose". In a simpler sense, carbohydrates are broken down into glucose (a monosaccharide) that can be absorbed in the intestines. Fats in the form of triglyceride is are broken down into fatty acids and monoglycerides (not glycerol). Proteins are broken down into amino acids.
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<em>Pepsin is an enzyme that aids protein digestion. Fiber is mainly composed of cellulose or plant carbohydrates that the human body cannot break down as we lack the enzyme for it. Glycerol is not released from triglycerides from digestion but instead monoglycerides (only two fatty acids from triglycerides are released).</em>
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<span>circulatory system hope this helps</span>