Answer: Blood group O individuals are able to produce Anti- A and Anti- B and are often referred to as UNIVERSAL DONORS, while blood group AB individuals produces none and are often referred to as UNIVERSAL RECIPIENTS
Explanation:
Two antigens, type A and type B, occur on the surfaces of the red blood cells in a large proportion of human beings. These antigens are referred to as agglutinogens because they often cause blood cell agglutination during blood transfusion. Because of the way these antigens are inherited, people may have neither of them on their cells , they may have one or they may have both simultaneously.
When type A antigen and type B antigen is not present in an individuals reb blood cell as seen in blood group O, antibodies known as Anti-A and Anti- B develops in the plasma. This is because small amounts of type A and type B antigens enter the body through food, bacteria and other ways and they initiate the development of anti A and Anti- B antibodies in their plasma.
Furthermore, individuals with blood type AB has antigen A and B on their red blood cells and therefore do not develop antibodies A and B in their plasma. This makes them universal recipient as their blood do not discriminate any ABO blood group during blood transfusion.
Rutherford reasoned that if Thomson's model was correct then the mass of the atom was spread out throughout the atom. Rutherford was forced to discard the Plum Pudding model and reasoned that the only way the alpha particles could be deflected backwards was if most of the mass in an atom was concentrated in a nucleus.
Answer:
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Explanation:
<em>The modeling tool shows exactly how different body parts form. Doctors can use models, like the one in the video, along with ultrasound pictures of a developing baby, to determine whether the embryo is growing normally and is forming the proper body structures at the correct time. If not, the doctor could inform the parents of the problem before the baby is born. Doctors could then make a plan to treat the condition, if possible.</em>
Answer:i believe the awnser is C
Explanation:
Answer:
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Explanation:
The ocean plays an important part in the carbon cycle.
- Overall, the ocean is called a carbon 'sink' because it takes up more carbon from the atmosphere than it gives up.
- Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter.
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