If the dot product of two nonzero vectors is zero, the vectors must be perpendicular to each other. if the dot product of two nonzero vectors is zero, the vectors must be perpendicular to each other. a. true b. false

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone