1. The squid has two eyes, each are
The squid has external
opposite the other by being on different sides of
transport for the example they swim. the head. Each eye has a hard lens, which is
For external transport you have to focused through movement, much like the lens
CEPHALOPODA
physically move your body. In this of a camera or telescope. Instead of like the
case the squid and octopus use a sort human eye that changes shape.
of jet propulsion, where they expand The squid has adapted to its
their tentacles then contract them it surroundings throughout its evolution. It is able
makes cephalopods the fastest marine to shoot ink. This ink when sprayed looks like a
invertebrates, and they can out‐ dark cloud, and is meant to confuse their
accelerate most Aish. predators. The ink is held in an ink sac, that
Internally the squid has 3 every cephalopod has except some species of
octopus and the Nautilidae. The squid and most
hearts to transport nutrients
other cephalopods are able to change their color.
throughout the body. Two of those This is because of the chromatophores, which
hearts support the gills, and the other are color pigments. These color pigments take
pumps blood through the body. Squids on many colors, and are used to blend their
and other cephalopods are the only surroundings so their predators can’t Aind them
mollusks with a closed circulatory and prey can’t see them.
system. This means that the blood Squids exchange gasses with the
never leaves the veins and arteries. seawater by forcing water through gills to
A squid’s nutrition is consists breath. The water being forced through the
of shrimps, Aish and other small Aish. funnel can be used to power jet propulsion. To
When a squid comes across a school get faster propulsion gills need to be small. The
smaller the gills the faster the water passes
of Aish, it uses its arms to grab one.
through. However species that spend most of
Then it pulls it into the mouth, which their time moving slowly along the bottom don’t
is a parrot like beak and is very need smaller lungs so they have larger lungs that
http://en.wikipedia.org/wiki/
strong. move water slower.
Cephalopod
The males attract females by To maintain homeostasis the squid
displaying changing their color spots Ailters waste that is produced by the brachial
and then fertilize her with a special hearts. These are the hearts that support the
arm. Female squids can lay up to gills. The waste is sent to the mantel from there
70,000 eggs. The eggs are laid on its excreted through a pore.
basically on anything nearby. Squid Squid have a very weird organelle
adults generally die after spawning. structure. All of the organs are located in the
mantel, which is the head. Other than the head
The squid has two eyes, each
the squids have 5 pairs tentalcles that surround
are opposite the other by being on their mouth. And the longer two, termed
different sides of the head. Each eye tentacles, are involved in capturing
has a hard lens, which is focused prey.Everybody knows what a squid is and what
through movement, much like the lens they look like. But how many people can say that
of a camera or telescope. Instead of they have seen a Giant Squid. The Giant Squid is
like the human eye that changes very illusive and mysterious. Not much
shape. information is known about it.
The squid in some ways are
like humans. We both have bi‐lateral symmetry;
this means if you split us in half right down the
middle we would look the same on both sides.
Also like humans the squid have many extinct
species. Some of which include the ammonites,
and the belemnites. These species have been
extinct for millions of years. And the squid and
other cephalopods that are still alive are very
important. Us as any living thing need food, and
that is what squid are. Squid are what we
calamari, this is a Japanese reference to cooked
squid tentacles.
Now do you have any questions?
http://en.wikipedia.org/wiki/
Cephalopod
[1]

2. SOURCES
http://www.buzzle.com/articles/what-do-squid-eat.html
http://wiki.answers.com/Q/How_do_squid_reproduce
http://en.wikipedia.org/wiki/Squid
http://en.wikipedia.org/wiki/Cephalopoda
[2]