The nervous system works closely with which of the following organ systems to control Ihe body, coordinate responses, and perform life functions?

A circulatory system
B muscular system
C Endocrine system
D all of the above

Nucleic acid certain protein cell membranes certain carbohydrates

Greenthe fossil record is the history of life recorded byhuman observationgod. climatologists. remains of the past.

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.