What type of neuron begins a reflex arc ?

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. which most likely affects the development of these traits? testes ovaries prostate gland vulva

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes