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Simple invertabrates

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enakashima's version from 2018-01-28 20:50

Porifera

Question Answer
Cells do what?special jobs
form tissues/organs? no
can they regenerate?yes
Use collar cells and flagellum for what?to draw in h20 to filter food and oxygen
amebocytes deliver what to the other cells in the sponge?food
What remains when a sponge dies?the spongin and spicules
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Cnidarians

Question Answer
Cnidariansexamples:hydra,jellyfish,corals,anemone, sea fans
What do they use to get foodtheir tentacles
They have what on their tentacles?stinging cells
What are the two types of body forms?poyp and medusa
How do they reproduce?sexually and by budding(asexually)
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Plathelmentes:flatworms

Question Answer
Plathelmentes(flatworms)some live in other bodies as parasites:tapeworm, flukes or are free living; planarian/ many are marine flatworms
how many body openings?one
What type of digestive/nervous system do they havesimple
How does their nutrients move between cells?diffusion
how do they reporducesexually
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Nematoda:roundworms

Question Answer
Nematoda(roundworms)heartworms,trichinella,hookworm,vinegar eel.Some parasitic, some free living
how many body openings?two
what type of digestive system do they have?one-way digestive system
what type of nervous system do they have?simple
How does the movement between cells happen?diffusion
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Annelida:segmented worms

Question Answer
Annelida(segmented worms)marine worms such as Christmas tree worm, earthworms, leehes
How is their body divided?by segments
What kind of digestive system do they have?complete digestive system
What kind of circulatory system do they have?closed
How do they take in oxygen?through their moist skin
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Section 6