When you cut your hand your body reacts to it as a stimulus
So stimulus
Im pretty sure if it has a wall it is a plant, if it has a nuclear membrane it is a eukaryotic
The lac operon, which stands for Lactose operon is known as an inducible system. It is the an operon required for the transport and metabolism of lactose some enteric bacteria (Echerichia coli for example). The Lac operon is only activated in the presence of a key molecule. The key molecule is lactose.
From the given options the following best describes the Lac operon:
D. The repressor is freed from the operator when lactose is present.
Answer:
false
Explanation:
with new knowledge , science evolves.