(noun) a division or contrast between two things that are or are represented as being opposed or entirely different.
(botany) repeated branching into two equal parts
A drug that interacts directly with receptor sites to cause the same activity that a natural chemical would cause at that site is the instructors best response.
Explanation:
Receptors are Macromolecules which involved in chemical signalling within cells. It is possible that receptors are located in the cell surface membrane. Cellular biochemical process is regulated by Activated receptor. The drugs are capable to affect to receptor who is related to the drug’s affinity and also intrinsic efficacy.
The affinity and activity of drug is related to its chemical structure. its effect is decided by the time duration where complex persistence of drug-receptor.
Answer: Chloroplast
Explanation: Pigments give the chloroplast and the plant its color.
Thanks to recycling, we barely mine lead any more. An estimated 85 percent of lead in use today goes into batteries, mostly for automobiles. And when the batteries run down, 99 percent of this lead is recycled to make new batteries.
