The correct answer is T helper cells. <span>T helper cells are important because they have the ability to stimulate other cells to kill the foreign particles (viruses, bacteria, fungi, parasites).T helper cells help other cells in the immune response by recognizing foreign antigens and by secreting cytokines that then activate T and B cells.</span>
Answer:
Water is Polar
Explanation:
There is no overall charge to a water molecule, but there is a slight positive charge on each hydrogen atom and slight negative charge on the oxygen atom.
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Answer:
It is called feedback regulation.
Explanation:
It is used when a product of the reaction is used for regulate the reaction. Therefore when there is enough product like ATP in this situtation, there is no need to run the reaction.
