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
MMS mollusk/echinode
| Question | Answer |
|---|---|
| What does it mean for a circulatory system to be “open” | Blood does not always stay in the blood vessels, but sometimes flows over the organs in the body cavity |
| How are mollusks divided into groups | Mollusks are divided into groups based on their shells and type of muscular foot |
| Which mollusks have a radula and what is it | Gastropods have a radula which helps them scrape away plant material so that they can eat it |
| Which class of mollusks are the most specialized/complex and why | Cephalopods are the most complex because they have a very advanced nervous system, eyes and a closed circulatory system |
| What body characteristic do mollusks and worms have in common | Both have soft bodies |
| In which group are mollusks with 2 shells | bivalves |
| In which group are mollusks with large heads and usually no outer shell | Cephalopods |
| List examples of gastropods | Snails, slugs, conches, whelks |
| List examples of bivalves | Clams, oysters, mussels, scallops |
| List examples of echinoderms | Sea stars, brittle stars, sea urchins, sand dollars, sea cucumbers |
| List characteristics of the mollusk phylum | Soft bodies, usually have a shell, mantle, organs/visceral mass, muscular foot, bilateral symmetry |
| List characteristics of the echinoderm phylum | Tube feet/water vascular system, radial symmetry, spiny skin |
| What does gastropod mean | Stomach foot |
| What does cephalopod mean | Head foot |
| Name a gastropod that doesn’t have a shell | slug |
| List three examples of cephalopods | Octopus, squid, cuttlefish |
| What are the jobs of the mantle | The mantle covers/protects the organs and also secretes the shell |
| What are three ways that mollusks are harmful | destructive to wooden boats/docks; gastropods scrape plants to eat/destroy crops; many can be dangerous to eat (bivalves are filter feeders and absorb water pollutants and many gastropods are hosts to dangerous parasites) |
| What are ways that mollusks are helpful | 1. Mollusk shells and pearls can be used in jewelry/decor 2. mollusks are eaten by many sea creatures and humans 3. bivalves are indicator species for water pollution 4. shells can be used by other organisms for shelter or as a source of calcium |
| What are ways that echinoderms are helpful | 1. food source 2. decorations 3. keep mollusk and algae populations under control 4. recycle nutrients 5. source of medicine |
Created by:
neumeist
Popular Biology sets