Crawfish Dissection

What Phylum does a Crawfish belong to?

• Ostiechthyes

• Chordata

• Arthropoda

• Echinodermata

What Class does Crawfish belong to?

• Arachnea

• Crustacea

• Insecta

• Merostomata

The order that Crawfish belong to is...

• Asrucudae

• Crustacea

• Decapoda

• Octapoda

Tomorrow, In order to dissect these, I must be wearing...

• Close toed shoes

• Open toed shoes

• my hair down

• a jacket or hoodie

If my hair is longer than my shoulder, I must...

• hold it up

• Cut my hair off

• Tie my hair up

• ignore it and let it fall in the specimen

Crawfish are part of The Subphylum _________ which includes three classes, and is named after the Structure ________, meaning Jaws

• Chelicerata - Chelicera

• Mandubulata - Mandibles

Crustaceans have a hardened Exoskeleton, just like all Arthropods. However, unlike other arthropods, their exoskeleton is infused with ________ making it harder than the rest

• Silica Oxide

• Chitin

• Calcium Carbonate

• Cartilage

• Spicules

Crawfish, like other Crustaceans, have two pairs of ________.

• Maxillipeds

• Antennae

• Pedipalps

• Maxillae

Which of these correctly identifies the Tagmata, or body segments, of a Crawfish?

• Head, Thorax, Abdomen

• Cephalothorax, abdomen

• Head, Repeating trunks, Terminal End

Which of these structures is NOT involved in Swimming and/or walking (Locomotion)?

• Uropod

• Legs

• Telson

• Swimmerets

• Cheliped