Grade 9 Biology Invertebrates
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50 Terms
1
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Porifera segmentation
No segmentation
2
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Porifera symmetry
No symmetry
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Porifera opening
single opening
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Porifera circulatory system
no circulatory system
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Porifera digestion
amoebocytes
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Porifera excretion
ammonia(nitrogenous waste)
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Porifera nervous system
no nervous system
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Porifera example
sponges
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Worms segmentation
segmented body
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Worms symmetry
bilateral symmetry
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Worms openings
two openings
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Worms nervous system
simple brain + nervous system
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Worms circulatory system
closed circulatory system
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Annelids gas exchange
diffusion through skin
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Annelids reproduction
hermaphrodites
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Annelids examples
earthworms, leeches, flatworm
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Arthropods segmentation
2 or 3 body segments
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Arthropods symmetry
bilateral symmetry
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Arthropods openings
two openings
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Arthropods nervous system
brain + nervous system
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Arthropods circulatory system
open circulatory system
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Arthropods reproduction
sexual reproduction
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Arthropoda exoskeleton
chitin
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Arthropoda most insects' respiration
trachea
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Most diverse phylum in animalia
Arthropods
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Arthropods gas exchange
book lungs (scorpion, spider)
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Arthropods examples
crab, ants, bees, spider, butterfly
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Cnidaria segmentation
no segmentation
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Cnidaria symmetry
Radial symmetry
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Cnidaria opening
Single opening
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Cnidaria nervous system
Simple nervous system
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Cnidaria circulatory system
No circulatory system
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Burner capsules for protection against outside danger
Cnidaria
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Cnidaria examples
Coral, jellyfish, hydra
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Mollusks segmentation
No segmentation
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Mollusks symmetry
Bilateral or radial symmetry
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Mollusks openings
Two openings
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Mollusks nervous system
No brain, nervous system
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Mollusks gas exchange
Gills
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Mollusks body texture
Soft body
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Mollusks habitat
Live in water(except snails)
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Mollusks exoskeleton
Covers the posterior side of the body
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Mollusks examples
Snail, octopus, oyster, mussel, squid
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Echinoderms segmentation
No segmentation
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Echinoderms symmetry
radial symmetry
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Echinoderms openings
two openings
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Echinoderms nervous system
no brain but NS
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Echinoderms circulatory system
no circulatory system
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Echinoderms outer skin structure
spiky structure
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Echinoderms examples
Starfish, sea urchin, sea cucumber
Note 
Flashcards (30)