Cells need oxygen to make energy. oxygen-rich blood is transported to tissues. when the oxygen is dropped off, it needs to move through structures that are small and thin. which vessels allow for oxygen movement into the tissues? a. arteries b. veins c. heart d. capillaries

The condition in which joints are inflamed is bursitis select the best answer from the choices provided ot f

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis