The Mayans lived in jungle like areas, where there is a lot of vegetation and it rains frequently
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.
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The answer is Phototropism, this is because the tip of the plant moves towards the light and the auxins make the plant elongate on the side with no light.