an animal with a backbone
an animal without a backbone
the systematic grouping of organisms by observed similarities
the highest category into which all living organisms are grouped
a single-celled organism having no nucleus
usually a single-celled organism having a nucleus
an organism that does not produce its own food, including mushrooms, yeast, mold, and mildew
many-celled organisms that make their own food, have cell walls, and have chloroplasts
- many-celled organisms that do not make their own food, have no cell walls, and have no chloroplasts
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
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
a cold-blooded vertebrate, typically begins life in water, breathes by gills, metamorphosizes into an adult, lives on land as an adult, breathes through lungs; gives birth by laying eggs
a cold-blooded, usually egg-laying vertebrate, having an external covering of scales and breathing by lungs
a warm-blooded vertebrate, having hair, most are live-birth, nourished with milk, and breathing through lungs
plants having tubes through which they get their nourishment
plants having no tubes
plants without see
plants with seeds
group according to characteristics
one-celled microbes with a nucleus
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