Question

10 multiple choice 1.5 points if a yeast strain requires a nutrient for survival, it is called an autotroph an auxotroph a phototroph a heterotroph

Explanation:

An auxotroph is a mutant organism that requires a nutrient it cannot synthesize for survival. Autotrophs make their own food, phototrophs use light for energy, and heterotrophs obtain nutrients from other organisms.

Answer:

B. an auxotroph