It should have the shape number 2.
The substance A has a region that will bind to the nerve cell Y.
The drug developed that's going to block the substance A, will have to have a region that is complementary to the substance A. If those two regions get linked the substance A will have nowhere else to bind.
Muscles and tissue will not be able to grow properly.
The more that animal is related to other animals
Explanation:
The time from flowering to harvest is contingent on a host of conditions, including the lemon tree's cultural conditions, outdoor temperatures, the number of lemons produced and the cultivar being grown, but generally takes anywhere from four months to one year.