What determines the genetic code? A. the order of amino acids in a protein

B. the order of nitrogen bases along a gene

C. the number of nitrogen bases in a DNA molecule

D. the number of guanine and cytosine bases in a chromosome

How are tumors cells different from normal cells

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.