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.
Average cost: For babies and toddlers, the average cost of full-time day care at a center is $972 a month. And thatâs average. Depending on your location and the center you choose, prices could exceed $1,500 a month per child for full-time care.