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?
science question

Which of the following defines scoliosis? a. a posture disorder characterized by the shoulders being rounded and the back hunched b. a posture disorder in which the spine curves up the back like a snake c. a posture disorder characterized by excessive curvature or arch in the lower back d. none of the above

Which one is not a part of the base of the cranial cavity? a. scala anterior b. scala media c. scala lateralis d. scala posterior

Which a hammer strikes a compound formed by covalent bounds