classify, invertebrate, respiration 7 words

  1. classify
    arrange or order by classes or categories
  2. invertebrate
    any animal lacking a backbone or notochord; the term is not used as a scientific classification
  3. respiration
    a single complete act of breathing in and out
  4. locomotion
    the power or ability to move
  5. chelicera
    either of the first pair of fang-like appendages near the mouth of an arachnid; often modified for grasping and piercing
  6. gradual
    proceeding in small stages
  7. disperse
    move away from each other