What is tautomeric shift? a. tautomeric shift is an intermolecular electron shift that changes the bonding structure of the molecule. b. tautomeric shift is an intramolecular electron shift that changes the bonding structure of the molecule. c. tautomeric shift is an intramolecular proton shift that changes the bonding structure of the molecule. d. tautomeric shift is an intermolecular proton shift that changes the bonding structure of the molecule.

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.

Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?

Asegment id dna that is artificially created from two or more organism through use of dna enzymes in a laboratory is called a segment of dna that is artificially created from two or more organisms through use of dna enzymes in a laboratory is called