Answer:
B
Explanation:
When a Physician writes orders as ad lib, this means that the patient that the order is written for can have as much as they desire of the specific item that the Physician specifies in the order.
Answer: Independent Variable
Explanation: Already explained this one in another post.
As long as you are referring to the green plants aka producers of the food chain/web.
The surface area of a sphere can be approximated as follows: Surface area = 4πr2; where r is the radius of the sphere; π is a constant that is roughly equal to 3.