What is the definition of gravity? a force that repels or pushes objects with mass away from each other a force that causes objects to fall toward the strongest magnetic field a force that attracts or pulls objects with mass toward each other mass decreases and mass increases

9. wind power creates pollution. water air soil noise

How does the study of genetic disorders such as pku biologists understand normal alleles?

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.