Final answer:
Enriched media contain added essential nutrients that specific bacteria need to grow.
Step-by-step explanation:
Media that contains complex organic substances such as blood for the growth of specific bacteria are referred to as enriched media.
Enriched media contain added essential nutrients that specific organisms need to grow.
They are often used to support the growth of fastidious organisms, which cannot produce certain nutrients on their own and require them to be added to the medium.