How is the cell in Diagram B effectively using its resources? A.)Since lactose is present, the repressor protein will begin transcription.

B.)RNA polymerase is transcribing the genes since lactose is present.

C.)The cell continually produces the enzymes needed to break down lactose.

D.)Since lactose is absent, the repressor protein is blocking the genes and stopping transcription.

14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.

Which level of taxonomy has the fewest organisms?

True or false: the breakup of pangea resulted in warm wet global climates?