cells have many structures inside of them called organelles. these organelles are like the organs in a human and they help the cell stay alive. each organelle has it's own specific function to help the cell survive. the nucleus of a eukaryotic cell directs the cell's activities and stores DNA.
Answer:
The correct answer will be- to provide smooth surface at the ends of synovial joint.
Explanation:
Articular cartilage is the white smooth tissue present at the end of the bones which covers the bones at the joints. The articular cartilage is devoid of the nerves, blood vessels and lymphatics but is exposed to the biochemical environment.
The cartilage at the joint helps in the movement of the bones by reducing the friction produced by gliding or sliding of the bones over each other.
Thus, to provide a smooth surface at the ends of synovial joint is the correct answer.
Answer:
A respiration rate under 12 or over 25 breaths per minute while resting is considered abnormal.
Explanation:
A person's respiratory rate is the number of breaths you take per minute. The normal respiration rate for an adult at rest is 12 to 20 breaths per minute.
