The probability of two independent events occurring together is the Quotient of the probability of each event occurring separately.
This relates because at first the human species are vulnerable to the new disease but as natural selection in human evolution occurs the human species will be able to overcome the disease and become invulnerable.
The structure shown by the red arrow is cell membrane.
In biology, cell membrane refers to the thin layer, which develops the external boundary of a living cell. It has three primary functions, which are as follows:
1. It comprises channels and receptors, which permits particular molecules like nutrients, ions, metabolic components, and wastes to pass between the cell and the outside environment.
2. It prevents toxic components from entering the cell.
3. They distinguish essential but incompatible metabolic procedures conducted within the cell.
The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen.
Answer: Interventional Study
Explanation: When a treatment group is compared to standard (control) group it is called Interventional Study