The species Ursus arctos, Ursus maritimus, and Ursus americanus are all members of the same genus. The classification of the three species supports which statement about them?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Which description provides the best objective summary of the article in the passage?

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond