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titi doc.2009
INTERNAL
STOMACHPYLORIC
CARDIAC
GASTRIC MILL“teeth” inside stomach
DIGESTIVE GLAND
Makes bile; finishes digestion; absorbs nutrients
Females: OVARIES – make eggsSEMINAL RECEPTACLES-store received sperm
Males:TESTES – make spermVAS DEFERENS- tubules inside that carry sperm from testes to exit opening
ENDOCRINE SYSTEM:controls sexual development
Also: molting, heart rate
ABDOMENINTESTINE – finish digestion; absorb nutrients; collect & remove feces
NERVOUS SYSTEMlike earthworms
VENTRAL NERVE CORDCEREBRAL GANGLIAGANGLIA along body
VENTRAL NERVE CORD
CEREBRAL GANGLIA = BRAIN
Nerves connect the eyes, antennae, and antennules to the brain.
http://www.flushing.k12.mi.us/srhigh/tippettl/biology/cray/ganganterior.html
COMPOUND EYE
Thousands of SENSORY HAIRS project from exoskeleton over entire body sense vibrations & chemicals
Thank you
titi doc.2009
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