In the genetic code, 61 of the 64 possible three-letter words signify an amino acid. what do the other three words signify? the termination, or ending, of a peptide the three-dimensional structure of the peptide the addition of sulfur to an amino acid a simple sugar to be added to the peptide

Which sequence correctly shows the path of carbon dioxide during repiration?

(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.

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure