a. A person with blood group AB produces no antibodies. How can you explain this?
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.
Answer:
Column A
3. The non-use of drugs is helping with performance, as a sports player myself I know that if I used drugs there would be problems with my performance in terms of cardio; drugs can make you overdose, have concussions, hallucinations, and it can damage lungs, liver, hear, which will stop you from being able to perform well or even play at all. These can be caused by steroids which can damage your insides.
Column B
2. The use of drugs is definitely affecting the student because he could be hallucinating or having trouble with anxiety because drugs can cause anxiety, making it impossible to concentrate and allowing your brain to have trouble in performing in the way it needs to help you in school.
Answer:
Body
Explanation:
Answer:
Systemic circulation is the movement of blood between the heart and therestofthebody.
Explanation:
The oxygenated blood will pass through the left ventricle to arteries then the capillaries of the body. After the oxygenated blood is distributed to all parts of the body, the now deoxygenated blood will return through a network of veins thus, to the right atrium of the heart.
Answer;
Symbiosis
Symbiosis is the term that includes Commensalism , mutualism and parasitism.
Explanation;
Parasitism is a symbiotic relationship does one organism benefit while the other organism is harmed.
Commensalism is a symbiotic relationship between two species in which one benefits, and other is neither harmed nor helped.
Mutualism on the other hand is where both organisms involved from each other. Example is the relationship between an Oxpecker and the rhinoceros or Zebra.
Answer:
4.08 x 10^6
Explanation: