How do you maintain homeostasis ?
acetylcholine, anandamide, dimethyltriptamine, dopamine, epinephrine, gaba, glumate, norepinephrine, oxytocin, serotonin

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures