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Definition
| multicellular heterotrophic organisms that lack cell walls |
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| animals without a backbone |
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| ability of a cell to perform a specific job. |
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| a group of similar cells that perform a common function. |
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| body structures that are composed of more than one type of tissue and that are specialized for a certain function |
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| make food using simple molecules from their environment and an energy source |
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| obtains food by eating other organisms or their byproducts |
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| when an animal takes in organic material or food. eating something. |
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| name a specific animal without a backbone |
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| maturing of a single cell into an adult animal |
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| cells become different from each other. They do not look alike. |
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| the grouping of organisms according to their symmetry, embryonic development and rRNA. |
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| connections between cells that hold tissues together. |
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| a fertilized egg. A diploid cell made when two haploid cells join. |
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| a specific animal with a backbone |
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| nervous tissue and muscle tissue |
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Definition
| the movement of animals is dependent upon the interrelationship of these two types of tissue |
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| branching diagram used by scientists to show how animals are related through evolution |
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Definition
| a firm, flexible rod of tissue located in the dorsal part of the body |
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Definition
| describes an animal's shape, symmetry, and internal organization |
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Definition
| a body arrangement in which parts on opposite sides of an axis are identical |
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| a body plan in which the parts are organized in a circle around an axis |
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| the concentration of sensory and brain structures in the anterior of the animal. |
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| a fluid filled space that forms between the digestive tract and the outer wall of the body during development. |
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