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.In general, an average hourly wage averages to about $9.5 per hour which averages to a yearly salary of around $38000 per annum.n internâs salary varies based on his or her age as the one in 20s earns up to Â£16,641, in 30s earns about Â£21,745, in 40s and in 50s earns about Â£25,739 per annum. In addition, the highest paid intern earns an yearly salary of around Â£31,787 whereas the lowest paid intern earns less than Â£21,000 per year.