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Chp 17 CRAYFISH/FROG
dissections
21
Biology
10th Grade
05/08/2006

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Term
what does the cervical groove seperate
Definition
head and thorax
Term
what is the layer of exoskeleton over hte sephalothorax called?
Definition
carapace
Term
what is the phylum name for animals with nerve chords?
Definition
chordata
Term
stacks with an equilibrium mechanism are found in the..
Definition
antennules
Term
what do the maxillae do?
Definition
help with chewing food and respiration
Term
madibles
Definition
chew food
Term
maxillipeds
Definition
hold food during eating
Term
chelipeds
Definition
weapons catch food
Term
how do u determin if a crayfish is male/female?
Definition
males 1st 2 swimmerets are pted towards the thorax andare larger
Term
what is the green gland responsible for?
Definition
removing waste chemicals from blood flow
Term
what muscles are responsible for bending?
Definition
flexor
Term
what muscles are responsible for straightening?
Definition
extensor
Term
what does the nicitating membrane do?
Definition
covers eye when it goes underwater (protects)
Term
what is the function of the tympanic membrance?
Definition
disects the sand (like an ear)
Term
tongue attached in mouth how?
Definition
in the front
Term
method of breathing for a frog
Definition
mouth glottis lungs glottis mouth nars
Term
frogs eyes positioned how? advantage?
Definition
sides; wider vision range
Term
glottis leads where?
Definition
respitory system
Term
hwo many loves does a frogs liver have?
Definition
3
Term
what is the function of the pyloric sphincter?
Definition
regulates amount of food in and out of the stomach
Term
how do u tell if a frog is male/female?
Definition
males- have pads on their thumbs to hold on to the female during mating
.. their thumbs are longer
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