Pleural Cavity is the body cavity that surrounds the right and left lung. The pleura is a serous membrane which folds back to form a two-layered, membrane structure. The thin â¦ space between the two pleural layers is known as the pleural cavity; it normally contains a small amount of pleural fluid. The outer pleura parietal pleura is attached to the chest wall.
Germinating the Seeds. To germinate staghorn sumac seeds place them in a warm room away from direct sunlight. Regularly mist the soil in the pot with a spray bottle to keep it moist. After germination, remove the plastic wrap and position the pot in a sunny window so the seedlings can grow.
Germination. Soil temperature is a key factor in germination. Zinnias germinate best at 70 to 80 F, so when starting the seeds indoors, it is important to maintain the soil temperature using heating pads, insulators, heaters or grow lights. The seeds should germinate in five to seven days.innias germinate best at 70 to 80 F, so when starting the seeds indoors, it is important to maintain the soil temperature using heating pads, insulators, heaters or grow lights. The seeds should germinate in five to seven days.