Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
AS Mollusca
Mollusks
| Question | Answer |
|---|---|
| Three classes of mollusks. | Bivalvia, Gastropoda, Cephalopoda |
| What does bivalvia mean? | "Two shells" |
| What does gastropoda mean? | "Stomach foot" |
| What does cephalopoda mean? | "Head foot" |
| All mollusks have these three body parts. | muscular foot, visceral mass, mantle |
| Part of a mollusk that secretes the shell. | mantle |
| Part of a mollusk that contains the internal organs. | visceral mass |
| Example bivalves. | clams, oysters, scallops, mussels |
| Example gastropods. | snails, slugs, nudibranchs (sea slugs) |
| Example cephalopods. | squid, octopus, nautilus, cuttlefish |
| Mollusks have a true coelom and are therefore considered | coelomates |
| Type of digestive system that contains a mouth AND an anus. | complete digestive system |
| Kidney-like organs used to excrete wastes. | nephridia |
| All mollusks have this type of symmetry. | bilateral |
| Tongue-like organ with rows of teeth used for scraping, drilling, and breaking down food. (only found in gastropods and cephalopods). | radula |
| Class of mollusks that use siphons to filter feed. | bivalvia |
| Part of a bivalve used to dig or burrow into the sand. | foot |
| Strong muscles used to keep a bivalve's shells closed. | adductor muscles |
| Bivalves and gastropods have blood that doesn't travel in vessels throughout the entire body. | open circulatory system |
| Cephalopods have blood that travels in vessels throughout the entire body. | closed circulatory system |
| A harpoon-like projection found in some snails. | proboscis |
| 180 degree twisting of a gastropods visceral mass and mantle. | torsion |
| Example gastropod with venomous spines. | nudibranchs (sea slugs) |
| A cephalopod's foot has been modified into different __________ contain suction cups. | arms/tentacles |
| Most cephalopods have a parrot-like ___________ for biting their prey. | beak |
| A tube-like organ on a cephalopod uses to take in and expel water. Can also be used for jet propulsion. | siphon |
| Cephalopod's sperm sac. | spermatophore |
| Class of mollusks considered to be the most intelligent of all invertebrates. | Cephalopoda |
| Cells that contains pigments that change color based on a cephalopod's environment. | chromatophore |
| Flaps on the mantle that help some cephalopods with swimming. | fins |
| Structures found on the clubs of a squid's feeding tentacles used to capture and hold on to prey. | toothed suckers |
| Sensory structures located at the anterior end of a gastropod. | tentacles (some contain eyespots for seeing) |
| Small pore in a gastropods side used for breathing. | respiratory pore |
| Oldest part of a bivalve's shell; where the two shells meet. | umbo |
| Parts of a bivalve that bring in water (and thus food and oxygen) AND excrete waste (including CO2). | incurrent and excurrent siphon. |
| As a bivalve grows, new parts of the growing shell are laid down in _________________, with the older ones closest to the umbo. | rings |
Created by:
ballb