The period happened 410 to 360 million years ago.

1.cambrian
2.ordovician
3.devonian
4.silurian

Works together in the synthesis, modification, packaging, and transport of lipids and proteins

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms