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.
After your baby is born, the first visit to the pediatrician should take place two to three days after he or she comes home (for breastfed babies) or when the baby is between 2 and 4 days old (for babies discharged from the hospital before they were 2 days old).