Phylum Mollusca: Mussels

Question 1

Mantle

Answer 1

Organ that forms the shell

Question 2

Foot

Answer 2

Specialized for digging

Question 3

Siphon

Answer 3

A double tube extended into the water that takes in oxygenated, nutrient-rich water and expels waste water

Question 4

Open Circulatory System

Answer 4

Two chamber hearts pumps blood, blood is delivered to sinuses in tissue and soaked for o2.

Question 5

Broadcaster

Answer 5

Disperse gametes into the ocean for fertilization

Question 6

Trocophore

Answer 6

A larval form swims free in the ocean, feeding on plankton until its ready to settle

Question 7

Gills

Answer 7

Exchange gases with the water drawn in through the siphon

Question 8

Radula

Answer 8

a rasping, tongue-like organ in mollusks, covered in tiny, chitinous teeth, used for scraping or drilling into surfaces to obtain or process food.

Question 9

Jet Propulsion

Answer 9

is a unique locomotion method in some cephalopods, like squids and octopuses, where water is forcefully expelled from a siphon to propel the mollusk in the opposite direction.

Question 10

Chromatophores

Answer 10

are pigment-containing cells in the skin of certain mollusks, allowing them to change color rapidly for camouflage, communication, or to express emotions.

Question 11

Beak

Answer 11

particularly in cephalopods like squids, is a hard, parrot-like structure used for tearing and capturing prey.

Question 12

Pen

Answer 12

a stiff, internal structure found in some cephalopods, functioning like a backbone and providing support to the body, particularly in squids.