| A | B |
|---|
| classify | group according to characteristics |
| vertebrate | an animal with a backbone |
| invertebrate | an animal without a backbone |
| classification | the systematic grouping of organisms by observed similarities |
| kingdom | the highest category into which all living organisms are grouped |
| protist | usually a single celled organism having a nucleus |
| fungi | an organism that does not produce its own food including mushrooms yeast mold and mildew |
| plants | multicelled organisms that make their own food have cell walls and have chloroplasts |
| animals | multicelled organisms that do not make their own food have no cell walls and have no chloroplasts |
| fish | a cold blooded aquatic vertebrate having gills commonly having fins and typically having an elongated body covered with scales; gives birth live or by laying eggs |
| bird | a warm blooded vertebrate having a body covered with feathers four limbs modified into wings scaly legs a beak no teeth; gives birth by laying eggs |
| amphibian | a cold blooded vertebrate typically begins life in waterbreathes by gills metamorphosizes into an adult lives on land as an adult |
| reptile | a cold blooded usually egg laying vertebrate having an external covering of scales and breathing by lungs |
| mammal | a warm blooded vertebrate having hair most are live-birth nourished with milk and breathing through lung |
| vascular | plants having tubes through which they get their nourishment |
| non-vascular | plants having no tubes |
| gymnosperm | seed producing plants without flowers |
| angiosperm | seed producing plants with flowers |
| seedless plants | plants that do not produce seeds |
