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- notochord
- Dorsal hollow nerve cord
- Pharyngeal slits (gills)
- Postanal tail
Connective Tissue
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, - sparse population of cells in an extracellular matrux conssiting of a web
of protein fibers withing a uniform foundation that may be liquid, jellylike, or
solid
- Functions: bind and support other tissues
Exotherms
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- Obtain body heat primarily by absorbing it from their surroundings
Mesohyl
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between choanocytes and epithelial cells SPONGES
Regulators
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Work to maintain body different than environment
- Requires more energy
(Humans)
Nemotocysts
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Stinging cells on tentacles used to capture prey
Negative Feedback
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- Response is opposite of the original stimulus
- Sweating, Blood sugar, shivering
How to sponges respoduce
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Sexually and asexually
Main organ systems of vertabrates
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- Circulatory system
- Digestive System
- Endocrine
- Excretory
- Lymphatic and immune system
- Integumentary
- Muscular-Skeletal
- Nervous
, - Reproductive
- Respiratory
Spongocoel
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The place where the water is drawn into from pores (ostia) SPONGES
Parazoa
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without specialized tissues or organs
- Porifera (sponges)
First Triploblast
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Platyhelminthes; three embryonic germ layers
Muscular System and skeletal system
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