In the human body, the nervous system provides impulses which direct muscles to move, while the contraction of muscles physically produces the movement. Which additional system determines the movement the body will make? (A) skeletal system

(B) immune system

(C) endocrine system

(D) reproductive system

Energy derived from hot rocks and fluids beneath the earth’s surface is

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming