Answer:
is is A i might be wring tho im not the best :/
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.
The purpose of predators is to prevent prey from overpopulating.
I think d is the correct answer or not
<em><u>concentrates:</u></em><em>
concentrates are high in protein and low in fibre.....
<u>roughage :</u>
roughage is high in fibre...</em>