all is correct . The role of the immune system is to protect the body from all what is strange about the the body this includes living organism or toxic chemical compounds ... In fact in all cases the different members of immune system recognize the strange thing by the spatial organization of its chemical composition . This is called antigen.
I think the correct answer from the choices listed above is option A. DNA contains deoxyribose sugar. DNA stands for deoxyribonucleic acid so it should contain such sugar. It is a molecule that contains genetic material used in organisms and other living things.
<span>Complex carbohydrates reside in our body, they are low in calories with dense nutrition, and are a rich in vitamins. Also, since Complex carbohydrates are made of sugar molecules, they are also rich in mineral.
Therefore, the answer is Complex Carbohydrates.</span>
Answer:
computers are widely used for official use even though smart phones can also work as computer