When your body becomes dehydrated, the pituitary gland stimulating thirst. a. sends a nerve impulse c. reabsorbs salts b. secretes a hormone d. tightens and relaxes muscles

In each transformation of energy , some energy what?

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?