Mighty Mollusks
Bivalve shells have how many halves?
Cephalopod means what?
head foot
Where is the shell of the cuttlefish located?
Inside of its body
cnidaria
All animals in the phylum Echinoderm have no what?
brain!
Name one type of bivalve?
Mussel, scallop, cockles, oyster, clam.
In the center of their bodies, under all those waving arms, cephalopods have what?
beaks!
what do you call a group of squids?
a squad
the nematocyst is what part of the cnidarian?
the stinging cells
on it's underside
walrus, otters, starfish, whelks.
What do the special cells called chromatophores do?
they are color changing cells that help cephalopods to camouflage.
a squid egg case resembles what?
a flower!
The dome-shaped body of a jellyfish is called the what?
what is the name of a sea star with long, thin, snake-like arms coming out of a round central disk?
a brittle star
on average, only one pearl is produced per how many bivalves?
1000!
cephalopods have another unique defense mechanism to hide themselves from predators, what is it?
INK! a black cloud of inky liquid can shoot out to hide them!
what is the cephalopod with the most tentacles?
the chambered nautilus
This creature can still sting even after they have been dead a few days?
the Portugese Man-of-War
basket stars can sometimes be mistaken for a plant, true or false?
true!
a giant clam can weigh up to how many pounds?
500 lbs!
How many brains does an octopus have?
How many feet long was the longest giant squid ever discovered?
59 feet!
Binary fission is when a sea anemone splits itself into how many separate sea anemones?
TWO!
This little animal resembles a pin cushion - what is it called?
a sea urchin