Other hypotheses for the tree of life present the Archaea as the ancestors to all other organisms. Make a sketch of a phylogenetic tree that presents Bacteria and Eukarya as more closely related to each other than to Archaea, and has Archaea as a sister group to Bacteria and Eukarya. Drag the appropriate labels to their respective targets. Place more closely related groups in alphabetical order from the top to the bottom.

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.