What passes for a starfish's circulatory system uses ocean water instead of blood. This is essentially a series of tubes that extend from the stomach to the arms to transport nutrients. A starfish doesn't have a heart, but water running through the arms and feet provides oxygen.
The average internist has a salary of $186,850 a year ($89.83 an hour). An entry level internist can expect to earn $60,870 a year ($29.26 an hour) while an experienced internist has an average annual salary of greater than $187,200 a year (greater than $90.00 an hour).n entry level internist can expect to earn $60,870 a year ($29.26 an hour) while an experienced internist has an average annual salary of greater than $187,200 a year (greater than $90.00 an hour).
The average starting salary for a first year intern in the United States is around $43000 per year. However, an average yearly salary for an intern depends on the number of working hours. An average base salary for an intern working for about 50 hours per week usually ranges from between $39,500 and $48,000.ased on the residency year, an average yearly salary for a first year intern is around $49,052 which gradually increases to $51,145 during 2nd year. An average yearly salary for an intern in 3rd year of residency program is around $52,503, and those in their 7th year earn around $61,283 per annum.