Ecto is
outer
end is
inner
repeated around central axis
radial symmetry
who undergoes cephalization
bilateral symmetry
cephalization
Many nerve cells and sensory structure concentrated at front of bod0y
Protostoems and deuterostomes two types of
bilateral symmetry
Domain
Eukarya
Kindgom
Anialia
Annelida
Phylum
Scientific name
Lumbricus terrestris
Earthworms are vertebrate or invertebrate?
Invertebrate
What type of circulatory system worms have?
Clsoed
They have a ___ digestive tract
complete
Anchor and control movement
setae
produces mucus glues worm together, secrets silky case protects eggs
clitellum
Sense enviro
Prostomium
Lubricates food by mucus secretions, making it slimy
Pharynx
storage/mixer
crop
continue to break down for aabsoprtion
intestine
Increaes SA of the intestine for efficient section and absorption during digestion
typhosole
Filter/remove waste from body
Nephridium
Produce, store, and release sperm
seminal vesicles
receive sperm
seminal receptacles
Wave-like muscle contraction moves solids/liquids along within strucutr, helps with digestin
persistalsis