Are electrons, protons, or neutrons the smallest particles? if not, what are

The chemical effect of the endocrine system is longer lasting than the chemical effect of the nervous system. select the best answer from the choices provided t f

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.