Mollusk Basics
Gastropods
Bivalves
+
Cephalopods
Characteristics of Arthropod
Arthropod Groups
100

What are the major groups of mollusks?

gastropods, bivalves, and cephalopods 

100
Gastropods are the largest and most numerous group of Mollusks, true or false?
TRUE
100
Bivalves have ____ shells held together by hinges and a strong muscle.
2. Remember, bi means 2.
100
All arthropods have a _________, which helps protect them from predators and from drying out.
EXOSKELETON or EXTERNAL SKELETON
100
These are arthropods that have 2 or 3 body sections and usually have 3 pairs of appendages for chewing. They're also the only arthropods that have 2 pairs of antennae
CRUSTACEANS
200
Mollusks have a thin layer of tissue called the __________, which is responsible for creating their shell
MANTLE
200
Gastropod literally translates to _____ ______.
STOMACH FOOT
200
Bivalves are _________ feeders, which means they strain food from water.
FILTER
200
The key to success for arthropods is their jointed _____________, like wings and legs, which help them move and feed
APPENDAGES
200
Spiders, mites, and ticks belong to this group of arthropods that only have 2 body sections
ARACHNIDS
300
The bodies of mollusks are usually soft and ______________, which means they have one continuous body (as opposed to a body that's in sections).
UNSEGMENTED
300
Gastropods may or may not have a _________.
SHELL
300
Cephalopods are mollusks whose feet are adapted to form __________ around their mouths.
TENTACLES.
300

the process by which an animal's body goes under dramatic changes in form during their life cycle 

METAMORPHOSIS
300

How do you get Lyme Disease?

get bit by an infected deer tick

400
Mollusks move with a muscular structure called a ______________.
FOOT
400

What helps the gastropod move? 

MUCUS

400
The suckers of an octopus are so sensitive that they can receive sensations of __________ without even touching an object.
TASTE
400
_________ is the process of shedding an outgrown skeleton.
MOLTING
400

What are the examples of arachnids? 

spiders, mites, ticks, and scorpions

500

What is a flexible ribbon of teeth?

RADULA

500
For some gastropods, their shell helps prevent them from drying out by preventing this process, where liquid water gets changed into vapor (gas)
EVAPORATION
500

What makes octopuses and squids different from other mollusks?

THEY HAVE NO SHELL

500

How do crustaceans breathe?

most have gills to breathe 

500

What do antenna do?

contains sense organs: smell, taste, touch, and keeping balance

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