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Unit 1 Lesson 2

How are living things classified?

TermDefinition
classify to arrange in groups using a system
kingdom the largest group into which an organism is classified
How scientists classify organisms by similarity, cell structure, how they get nutrients and energy, how they reproduce
Moneran one-celled, no separate nucleus Example: Bacteria
Protist Mostly one-celled but some have many cells, have nucleus and other cell structures Examples: Algae, ameba
Fungus Mostly many-celled, cannot move, absorb nutrients from other organisms Examples: Mushrooms, yeast, molds
Plant Many-celled, cannot move, use energy from the sun to make sugars (food) Examples: Trees, flowers, ferns
Animal Many-celled, most can move, get energy by consuming other organisms Examples: Invertebrates, fish, birds, mammals
genus a group of similar species Example: Lions and tigers
species group of organisms of only one kind that can interbreed in nature Example: Tigers
vertebrates have a backbone
invertebrates no backbones
Created by: Sra_Anthony_Home
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