That's called a convex lens, as they converge.
The abdominal cavity is lined by peritoneum. It is a membrane that covers the inner layer of the cavity and also the organs inside. The membrane on the inner wall is parietal Thperitonium and the membrane that lines the organ is called visceral peritoneum. This helps in fixation and support of abdominal organs.
One option for reducing air pollution is to cut back on major producer factories.
Answer:
structures that preform many jobs in cells :)
Answer: Single cell organisms dont need a respiratory system because oxygen and carbon-dioxe diffuses between their body tissues and the enviorment.
