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26 Cards in this Set
- Front
- Back
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Invertebrate
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animal that does not have a backbone or vertebral column
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Vertebrate
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animal that has a vertebral column, or backbone
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Parasite
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an organism that is in a symbiotic relationship in which one organism lives in or on another organism and consequently harms it
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Host
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Organism which the parasite lives in or on
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Blastula
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hollow ball of cells formed when a zygote undergoes a series of divisions
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Protostome
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Animal whose mouth is formed from its blastopore
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Deuterostome
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Animal whose anus is formed from the blastopore of a blastula
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Endoderm
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Innermost germ layer of most animals; develops into the linings of the digestive tract and much of the respiratory system
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Mesoderm -
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Middle germ layer of most animals; gives rise to muscles and much of the circulatory , reproductive, and excretory systems
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Ectoderm
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-Outermost germ layer of most animals; gives rise to outer layer of the skin, sense organ, and nerves
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Anus -
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Opening through which wastes leave the digestive tract
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Radial Symmetry
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- Body plan in which body parts repeat around the center of the body; characteristic of sea anemones and sea stars
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Cephalization
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- Concentration of sense organs and nerve cells at the front of an animal's body
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Invertebrate
|
animal that does not have a backbone or vertebral column
|
|
|
Vertebrate
|
animal that has a vertebral column, or backbone
|
|
|
Parasite
|
an organism that is in a symbiotic relationship in which one organism lives in or on another organism and consequently harms it
|
|
|
Host
|
Organism which the parasite lives in or on
|
|
|
Blastula
|
hollow ball of cells formed when a zygote undergoes a series of divisions
|
|
|
Protostome
|
Animal whose mouth is formed from its blastopore
|
|
|
Deuterostome
|
Animal whose anus is formed from the blastopore of a blastula
|
|
|
Endoderm
|
Innermost germ layer of most animals; develops into the linings of the digestive tract and much of the respiratory system
|
|
|
Mesoderm -
|
Middle germ layer of most animals; gives rise to muscles and much of the circulatory , reproductive, and excretory systems
|
|
|
Ectoderm
|
-Outermost germ layer of most animals; gives rise to outer layer of the skin, sense organ, and nerves
|
|
|
Anus -
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Opening through which wastes leave the digestive tract
|
|
|
Radial Symmetry
|
- Body plan in which body parts repeat around the center of the body; characteristic of sea anemones and sea stars
|
|
|
Cephalization
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- Concentration of sense organs and nerve cells at the front of an animal's body
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