Use what you learned about the troposphere and stratosphere to choose the correct answers from the drop-down menus. The layers of the atmosphere are characterized by changes in
.

The troposphere experiences large changes in
.

Airplanes fly best in
.

The temperature in the troposphere
as you go higher, and in the stratosphere, it
as you go higher. HURRY PLS!!!

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.

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods

How do the evolutionary chart and the video support the claim that all living things are made up of cells?