An estuary mouth and coastal waters, part of an aquatic ecosystem An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems.[1]
The cost of a pediatrician office visit will vary by region and by the individual doctor. On average, expect to pay $75 to $200 for a standard visit.
Cost of prenatal care: 1  On average, the total prenatal visits will cost anywhere from $1,700 to $3,000 for the entire nine months during the pregnancy. 2  This is without insurance and doesnât include the baby delivery.