Many animals have a mutually-beneficial,symbiotic relationship with bacteria that reside in their guts.To study the effects of these relationships in more detail,research organisms such as fish and mice have been raised under germ-free conditions.What important process do you predict is compromised in germ-free mice?
A)vitamin C synthesis
B)vitamin D synthesis
C)synthesis of essential amino acids
D)vitamin K synthesis
E)leptin synthesis

Question

Quizplus · Accepted Answer

Vitamin K is produced by bacteria in the gut, so germ-free mice would not be able to synthesize this vitamin on their own.

Many Animals Have a Mutually-Beneficial,symbiotic Relationship with Bacteria That Reside