Millions of years ago Era Period Quaternary Cenozoic 1.6 Tertiary 66.4 Cretaceous 144 Mesozoic Jurassic 208 Tnassic 245 Permian 286 Pennsylvanian Carboniferous 320 Mississippian 360 Paleozoic Devonian 408 Silurian 438 Ordovician 508 Cambrian 570 Precambrian Which method is most likely used to identify what happened before the start of'the Paleozoic era?

The direct energy source that drives atp synthesis during respiratory oxidative phosphorylation is

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.