There are three basic types of freshwater ecosystems: 1  Lentic: slow moving water, including pools, ponds, and lakes. 2  Lotic: faster moving water, for example streams and rivers. 3  Wetlands: areas where the soil is saturated or inundated for at least part of the time.
Pediatricians earn an average hourly wage of $95.10. Pediatricians earn an average salary of $197,800 per year.
according to Merritt, Hawkins and Associates, the average salary for a pediatrician is $130,000 a year.     however, according to Medical Economics, they reported a sa â¦ lary range from less than $60,000 to up to $400,000 a year.