Hello! Welcome to Mr. Ds Virtual Dissection Lab. While you may
not be able to participate in the lab, I hope you will find this
quick exploration into the world of one of the coolest cephalopods
fun!!
Slide 3
Please watch the following video. It will give you a glimpse
into the world of the Squid http://youtu.be/Nn-BkBcbqhA
Slide 4
The Squid is an invertebrate (animal without a backbone) that
swims in the oceans. This mollusk is closely related to the
octopus. Squid can change the color of their skin to mimic their
environment and hide from predators. Squid are soft-bodied
cephalopods. They move by squirting water from the mantle through
the siphon, using a type of jet propulsion. When in danger, squid
squirt a cloud of dark ink in order to confuse their attacker and
allow the squid to escape. Squid reproduce by releasing eggs into
the water. Some squid eggs are free- floating, others are attached
to seaweed or to the ocean floor.cephalopods
Slide 5
Anatomy: Squid range from 1 to 60 ft (0.3 to 18 m) long. The
biggest squid is the Giant Squid (Architeuthis). Squid have a large
mantle/head (with a large brain), eight arms with suckers, two
longer feeding tentacles, a beak, a large head, two large eyes, and
two hearts. Their large eyes are very similar in structure to
people's eyes. They breathe using gills.Giant Squid (Architeuthis)
Diet: Squid eat fish, crustaceans (like shrimp), and other squid.
These fast-moving carnivores (meat-eaters) catch prey with their
two feeding tentacles, then hold the prey with the eight arms and
bite it into small pieces using a parrot-like beak. The esophagus
runs through the brain, so the food must be in small pieces before
swallowing.shrimp Predators: Many animals prey upon squid,
including many sharks and other fish, some whales, squid, and
people.sharksfishwhales Classification: Kingdom Animalia, Phylum
Mollusca, Class Cephalopoda, Order Teuthoidea, Families
Loliginidae, Sepiolidae, and Architeuthidae.
Slide 6
Fins Eye Head Tentacles Mantle Siphon Beak & Mouth Clubs
Arms First read the descriptions below Thenclick and check your
answers
Slide 7
Now you can watch a squid dissection. Just follow along with
the instructor and check the boxes as she proceeds through the
external and internal dissection. Answer the Analysis questions and
complete pgs 3 & 4 as best you can. Make sure you write your
name on the handout. http://youtu.be/OueQ9kU36i0 Good Luck!!
Slide 8
Ok now you are done. Now sit back and watch Giant Squid
(Architeuthis) footage, January 27, 2013 This is longest video of a
Giant Squid in its natural habitat.
http://youtu.be/jCWop491Q9Y