During the process of absorption, nutrients from food go from: *
A the intestines into the bladder
B the blood into the organs
C the intestines into the bloodstream
D the mouth into the stomach

The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

Describe characteristics of a good respitory surface