Which clue would tell if the lac operon is on?

the repressor protein has fallen off the molecule.

lactose is absent.

rna polymerase is blocked by the repressor.

the cell membrane changes.

As global warming continues the ocean absorbs more of the earth's heat what term describes the ocean as a storage location for heat a) heat binb) heat sinkc) heat storaged) heat vent( answer this for me)

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity