Classification of Invertebrates

Which phylum do sponges belong to?

• Porifera

• Mollusca

• Cnidaria

• Platyhelminthes

What is the basic form of Cnidarians that is vase-shaped?

• Jellyfish

• Polyp

• Medusa

• Anemone

What is the Greek meaning of the name Cnidaria?

• To sting

• To swim

• To crawl

• To fly

Which phylum do roundworms belong to?

• Platyhelminthes

• Nematoda

• Annelida

• Mollusca

What is the meaning of Platyhelminthes in Greek?

• Flatworms

• Roundworms

• Segmented worms

• Soft

Which type of Mollusks are known as univalves?

• Gastropods

• Bivalves

• Cephalopods

• Echinoderms

How many pairs of antennae do crustaceans have?

• Three

• Five

• Two

• Four

What is the body part of arachnids that is divided into two parts?

• Cephalothorax and Abdomen

• Head and Abdomen

• Head and Chest

• Chest and Abdomen

How many pairs of walking legs do insects have?

• Four

• Five

• Three

• Two

What is the meaning of the word Mollusk in Latin?

• Spiny

• Soft

• Fleshy

• Hard