2nd Semester Final Flashcards
How big is the giant squid?
60 ft
How much does the giant squid weigh?
3 tons
When do Southern California squid spawn?
In the winter
Kingdom
Phylum
Class
Kingdom: animalia
Phylum: mollusca
Class: Cephalopoda
What is the Latin meaning of the phylum and class?
Phylum: “soft body”
Class: “head footed”
How do squid protect themselves from predators?
They release a cloud of dark ink
What happened when you rubbed the chromatophores?
They changed colors
Where does squid fit into the marine food web?
Major food source for birds, fishes, and marine mammals
What role does the squid play in the ocean ecosystem?
Birds eat squid; squid eat fish, marine animals
What adaptations does the squid have that allow it to play that role?
Inc sacs and suction cups
The biggest known of any animal
Has a lens the size of an orange
Built in search light
Eyes
Eight of these
Have sharp hooks (suckers)
Uses suckers to attach to its prey
Arms
Bite their prey with this
Looks like the upside down parrot’s version of this
Has to chop up food small because their food goes through their brain
Beak
Uses these to capture prey
Wraps around prey
Have rotating hooks at end of these
Tentacles
Uses this to jet propel backwards
Shoots water out of this
This is where the ink shoots out of
Funnel (siphon)
Slab of muscle
Holds the body together
Holds the organs in
Mantel
Swim forward
Swim side to side
Overall balance
Fin
Found inside mantle
Can develop into animal
Never found a male colossal squid yet
Eggs
Use to breathe
Move water into the mantle
Absorb oxygen from water
Gills
Shaped like a donut
Around the throat
Have large optic loved near this (for eyesight)
Brain
Big as a sesame seed
Resemble a bone
Used for balance (gravity)
Statoliths
Found in mantle
Used to produce cloud of ink
Helps squid move away fast
Inc sac
3 of these
Blood is blue because it contains copper
2 of these send blood to gills
Heart
Also called the pen
Provides structure
Runs down middle of mantle
Gladius
