Answer:
d.
Explanation:
You need a small dose of the disease so your body can fight it and become immune.
Because they have the potential for regeneration of damaged cells
Medicare refers to a program for the individuals of and above the age of 65 with certain disabilities and diseases. Medicare the FFS scheme, that is, Fee-for-Service covers two parts, Part A and Part B.
Part A covers skilled nursing facility, hospital, hospice, and home health services. Part B covers professional services like those provided by a doctor. In the given case, Kelly is entitled to Part A, but not to Part B. Thus, in order to join a Medicare health plan, she also must enroll in Part B.
C no because many species went extinct without leaving fossils behind