Vertebrates. they are all chordates, which mean they have a notochord somewhere in their body.
The answer is number 3 use this to help you : https://quizlet.com/118565169/nsg-6005-week-8-flash-cards/
The correct answer is low precipitation.
The cause of limited water supplies is reduced precipitation or low precipitation.
Precipitation is termed as any product of condensation which is of atmospheric water vapour which falls under gravity.
Forms of precipitation can be sleet, snow, graupel, hail, drizzle, and rain.
Precipitation occurs when portion of atmosphere comes to being saturated with water vapor such that water condenses and then it precipitates.
It is the major component of water cycle and deposits fresh water to planet.
