Answer:
The function of the pleura is to allow optimal expansion and contraction of the lungs during breathing. The pleural fluid acts as a lubricant, allowing the parietal and visceral pleura to glide over each other friction free. This fluid is produced by the pleural layers themselves.
<span>The mirror is used to focus light through the opening in the in the stage of the microscope.</span>
Pollination stage is when plant modify the environment just saying I am a 6th grader so like I am not that smart so it might be very wrong
