Which one of the following statements about essential nutrients is most accurate? a. they’re made by the body.
b. they can be supplied adequately only through dietary supplementation.
c. they must be obtained through diet.
d. they consist of over 75 different types of nutrients

In which way does nicotine cause addiction? by stimulating the brain's pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety

In many ways, the regulation of the genes of a particular group of viruses will be similar to the regulation of the host genes. therefore, which of the following would you expect of the genes of a bacteriophage? a) regulation via acetylation of histonesb) positive control mechanisms rather than negativec) control of more than one gene in an operond) reliance on transcription activators

Cages or wells required if longer a maximum unbroken length of 30 ft