The function of the nephron is to: 1.)regulate the rate of the heart during exercise 2.)produce urine by filtering blood 3.)reabsorb water from the feces within the rectum 4.)produce insulin to regulate blood sugar

What is it called when plants lose water though their leaves

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.

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting