A Cardiologist is a physician who is certified to practice Cardiology which involves the diagnoses and treatment of disorders of the circulatory system and the cardiovascular system â the heart, arteries, and veins.
Mongrel (The Bob Seger System album) Mongrel is the third studio album by American rock band The Bob Seger System, released in 1970 (see 1970 in music). Until recently, the album was unavailable on CD or digitally. Rolling Stone reviewed Mongrel on January 7, 1971.
Video: Bronfenbrenner's Microsystem: Definition & Concept Urie Bronfenbrenner is a Russian American psychologist who became famous for his ecological systems theory. Learn about Bronfenbrenner's theory, the five environmental systems, and more in this lesson.