Answer: A natural killer cell (NK) is a type of lymphocyte that has an activating and inhibitory receptors extending from its plasma membrane
Explanation: A natural killer cell (Nk) is a type of lymphocyte (a white blood cell) that has an AC and inhibitory receptors. It plays a major role in host rejection of both tumours and virally infected cells. It contains specifical protein such as perforin and granules.
The statement above is TRUE.
When a controlled substance is prescribed with other drugs, it must be marked with a red one inch letter 'C' in the lower right hand corner.
A controlled drug refers to a drug whose use and possession is regulated by the government.<span />
Explanation:
Pangea
Pangea is the belief that all continents were all connected at one time
