When is the lac operon most active? a: when glucose levels are high and lactose is present . b: when glucose levels are low and lactose is absent . c: when glucose levels are low and lactose is present . d: when glucose levels are high and lactose is absent?

satellites are frequently used to make observations of the orbit on earth

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

c is the answer to this question. altitude affects the weather because air molecules evaporate.

answer; ///blank(1); green bananas; blank(2); raw potatoes;