1. Which of the following biological systems is most likely responsible for an increase in heart rate while experiencing anxiety? A. The central nervous system B. The sympathetic nervous system C. The parasympathetic nervous system D. The endocrine system E. The vestibular system

Answer observational;

Answer(32) percent

The earth's inner core is the earth's innermost part. it is primarily a solid ball with a radius of about 1,220 km (760 miles), which is about 70% of the moon's radius.[1][2] it is composed of an iron–nickel alloy and some light elements. the temperature at the inner core's surface is approximately 5,700 k (5,430 °c), which is about the temperature at the surface of the sun.