I don’t exactly understand the question, I’m open to help though!!!
Answer:
Route of administration
Explanation:
Drugs may be defined as the chemicals that are given against the particular disease for the treatment of the patient. The drugs must be given in the proper amount as directed by the medical practitioner.
The effects of the drugs depend on the individual and its route of administration. The oral administration of drug is more common but a diabetic patient needs to given drug intravenously. Intraperitoneal drug route is given to show the effect of drug quickly and drug cannot infiltrate a blood vessel.
Thus, the answer is route of administration.
Answer - Cyanobacteria aka Algae that contributed in creating O2 for the atmosphere as a byproduct thru Photosynthetic.
Reason - Of course Algae make up mainly the whole world in waters and they do photosynthesis to give off oxygen in the atmosphere.
