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Squids don't have pens. They squirt ink from a bodily orifice in order to deter predators.
actually, inside the mantle is the pen of the squid, a hard protrusion which is all that remains of the squid's shelled ancestors. (i got this from chacha to do my bio hw)
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∙ 12y ago
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What is the squid pen made of?
The pen of a squid is made out of pure calcium nitrate
In a squid what does the pen do?
nothing
What is the function of the squid's pen?
The pen is a feather-shaped internal structure that supports the squid's mantle and serves as a site for muscle attachment. It is made of a chitin-like substance. It is the remnant of the squid's shell, so it is a vestigial structure.
What is a squid pen compaired to in a vertebrate?
A backbone.
What structure on a squid analogous to a snails shell?
A squid's tentacles are homologous to the snail's foot.
What is function of the pen in squid?
to squirt out ink O_O
What is the internal shell found on a squid called?
the pen
What is the internal shell found on squid called?
The pen
Who shoots out cloud of ink to hide?
a squid with a leaking pen
What is the squids function of the pen?
to help the squid stay up straight
What is the function of a squids pen?
to help the squid stay up straight
Do squid have an exo- skeleton?
No. Squid have a vestigial, or highly reduced, internal feather-shaped shell called a "pen".
