Show:
Mollusks
Cephalopods
Arthropods
Crustaceans
Insects
100
What does a snail use to move?
Foot.
100
The squid’s internal shell is called the ______.
Pen
100
Millipedes are this type of feeder.
Herbivore.
100
In a crayfish, these two regions of the body are fused.
Head and thorax (Cephalothorax).
100

Insects typically have at least one set of complex eyes called _________________.

Compound Eyes.

200
How do clams and mussels feed?
Filter feeding (using gills)
200
How do squid swim?
Jet propulsion (draw water into mantle and then force water out their siphons).
200

Name the three characteristics of all arthropods.

Exoskeleton, Jointed Appendages, Segmented bodies.

200
Crayfish have two pairs of antennae. The smaller pair are called ______________________.
Antennules.
200

Insects typically have how many pairs of wings?

2 pairs.

300
Mollusks eat using a rasping tongue known as a ________.
Radula.
300
How many arms and how many tentacles do squid have?
8 arms, 2 tentacles.
300
Ticks are parasites that are particularly dangerous because they spread this disease.
Lyme Disease.
300
The claws of crayfish are known as _________.
Chelipeds.
300

The body of an insect is divided into what 3 regions?

Head, thorax, abdomen

400

How did class Bivalvia gets its name?

Two shells (ex: clams)

400
Octopus and squid are unusual among the mollusks in that they are fast moving and have this type of circulatory system.
Closed circulatory system.
400
Spiders respire using these structures.
Book lungs.
400
The dorsal exoskeleton of the crayfish has a special name. It is called the ___________________.
Carapace.
400

Insects respire using these structures.

Tracheal tubes.

500

What is the name for the body wall of a mollusk and what does it do?  

Mantle.  It protects the inner organs and in some mollusks secretes materials for the shell.

500
Class Cephalopoda includes the octopi and the squid. Name one other animal that is also in this class.
Cuttlefish and nautilus.
500
The biting jaws of spiders are known as ________________.
Chelicerae.
500
Why is the dorsal exoskeleton of crayfish so hard?
Contains calcium carbonate.
500

Centipedes are not insects but they are part of the same Subphylum. What is this subphylum?

Uniramia.