I think its b but that's all I can see that is reasonable but all I can say is I tried
Answer:
B. All of them could be the answer but B is the one that describes bacteria the best. good luck.
Answer:
PCR=Polymerase chain reaction
Explanation:
A stimulus can be internal, or from within the organism itself. A stimulus can also be external, meaning it occurs outside the organism. Both internal and external stimuli can cause a response, or resulting reaction, in an organism.
