The bonds that are broken when water vaporizes are a) ionic bonds. b) hydrogen bonds between water molecules. c) covalent bonds between atoms within water molecules. d) polar covalent bonds. e) nonpolar covalent bonds.

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f