The occurrence of withdrawal symptoms signals that the body has adjusted to the presence of the drug. indicates that substance abuse has developed. is seen when use of any psychoactive substance is terminated. is necessary for a diagnosis of substance dependence.

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

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.

Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry