Question

Which is not a way in which prokaryotes are useful to humans?

a. to synthesize drugs
b. to produce foods such as yogurt
c. to form a symbiotic relationship and obtain ammonia
d. none of the above

Answer 1

The correct answer would be C - to form a symbiotic relationship and obtain ammonia.

Answer 2

is the answer below correct? because i know the option "to synthesize drugs" is wrong.