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).
Engineering Intern Salary. (United States). Median pay for Engineering Interns in the United States lies in the neighborhood of $16.29 per hour. Lower pay rates hover around $10.99 per hour, and the higher rates verge on $24.22. Residence and years of experience each impact pay for this group, with the former having the largest influence. Work is enjoyable for Engineering Interns, who typically claim high levels of job satisfaction.