Answer:
The phosphorus cycle does not involve any gaseous P compounds(it circulates through water, earth's crust, & living organisms AND does not include the atmosphere) Identify EITHER one nitrogen compound OR one phosphorus compound that is considered a pollutant when released by human activity into the environment.
Explanation:
Center dome is least harmful
Answer:
The answer is A.
Explanation:
The lac repressor protein can prevent or let the transcription and production of the operan. When there is lactose not present in the body, the lac repressor protein prevents the production of the operan by RNA polymerase but when lactose is present, it let's the operan to get produced . So the answer is yes, the presence of the lactose molecule controls whether the operon is on or off.
I hope this answer helps.
