It is called THERAPEUTIC INDEX. Therapeutic index is the comparison of the amount of a particular drug that causes the desired therapeutic effects and the amount that causes toxicity. The index can be low or high. A drug with a low therapeutic index will require only a small increase in dose to produce toxic effects in users.
Answer:
except natural killer cells.
Explanation:
The Helper T cells produce cytotoxic T cells and help B cells, but not natural killer cells
Rain forest plants all work together to provide food and shelter for rain forest animals, as well as to convert carbon dioxide to oxygen. Ground-level competition for light and food has resulted in some unusual plant evolution.
The reason why the animal that has been struck by the arrow
goes limp and quickly suffocates because the acetylcholine receptor sites are
blocked and this was made possible because of the drug curare they use in
poisoning the top of the arrows.
