Bone growth at the articular cartilage is responsible for bone growth of ________.
A. flat bones
B. long bones
C. short bones
D. only the cartilage
E. irregular bones
Answer: C
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Synovial fluid is present in joint cavities of freely movable joints. Which of the following statements is true about this fluid?
A) It contains enzymes only. B) It contains lactic acid. C) It contains hyaluronic acid. D) It contains hydrochloric acid.
Bruce has colorectal cancer that has spread to his lymphatic system. He is given a drug
that is an angiogenesis inhibitor. The drug works by A) halting cell division only in tumor cells. B) cutting off the supply of ATP to cancer cells. C) starving tumors by cutting off their blood supplies. D) stimulating new blood vessels to serve tissue damaged by the cancer.
The pneumotaxic and apneustic centers are located in the cerebellum
Indicate whether the statement is true or false
A cell is placed into a 1 millimolar solution of substance X and over time you witness the concentration of X inside the cell increase to 5 millimolar. What is the best explanation for this observation?
A. X is moving into the cell by simple diffusion. B. X is moving into the cell by diffusion through a protein channel. C. X is moving into the cell by facilitated diffusion. D. X is moving into the cell by primary active transport. E. Water is leaving the cell by osmosis.