Match these items. acid
1. an atom that has gained or lost electrons
1
ion
2. produces OH-ions when added to water
I base
3. produces Hions when added to water

Which group of chordates does  notpossess true backbones?                 a.  birds      b.  frogs and toads      c.  lampreys      d.  crocodilians

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

The image below shows a weather service map. which details best describe this map? check all that apply