Why is there a need to pin the head of the frog during the dissection?
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The frog's skin is colored and spotted to help camouflage it. ... Frog's Head. On the frog's ... Note you may have to break a bone to pin the frog at the hands so he's spread out. Pinned ...
On the outside of the frog's head are two external nares, or nostrils; two tympani, ... Turn the frog on its back and pin down the legs. Cut the hinges of the mouth and open it wide.
On the outside of the frog's head are two external nares, or nostrils; two tympani, ... Turn the frog on its back and pin down the legs. Cut the hinges of the mouth and open it wide.
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