Explanation:
The digestive system runs from the mouth, gullet, stomach, liver, pancreas, duodenum/upper small intestine, ileum/ lower small intestine, large intestine, appendix, rectum and anus. However the alimentary canal has all the above features except for the liver and pancreas
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The right one for this is “D”
1) Birthrate. Because you need to accommodate for all the little humans on earth, whether that be housing or taxes and such. Plus we don’t want overcrowding in certain areas.
2) death rate. It’s important to look at the death rate of a population because it can show the condition quality of certain areas. If a place has a higher death rate or the rate increases too quickly, then that should signal that something is wrong.
They bind to MHC class I molecules and T-cell receptors
Following influenza infection or receipt of a flu vaccine, the body's immune system develops antibodies that recognize and bind to “antigenic sites,” which are regions found on an influenza virus' surface proteins
<h3>What are Antibodies ?</h3>
When the immune system of the body recognises dangerous compounds, known as antigens, it produces a protein called an antibody. Microorganisms (bacteria, fungi, parasites, and viruses) and chemicals are examples of antigens.
- Proteins called antibodies defend you when your body comes into contact with an unwelcome chemical. Antibodies, which are made by your immune system, bind to these foreign chemicals and drive them out of your body. Antibody is also known as immunoglobulin.
Learn more about Antibodies here:
brainly.com/question/15382995
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Answer:
.......is called chemical compound