Ivertebrates Quiz

Which invertebrate could reproduce by detatching an arm? (a)  

• Starfish
• Sea urchins
• Squid
• Sea star

Which class of invertebrates has a name that means "stinging needles"? (a)  

• Cnidaria
• Porifera
• Arthropoda
• Annelida

Which vertebrate class obtains food by absorption through a digestive tube that runs the length of the organism's body? (a)  

• Annelida (Worms)
• Porifera(Sponges)
• Arthropods(Crabs)
• Echinodermta(Sand Dollar)

Which class contains land and sea creatures that all have an exoskeleton?

• Mollusca

• Porifera

• Echinodermta

• Arthropoda

Which class of invertebrates obtains oxygen by filtering water through its pores?

• Annelida

• Mollusca

• Porifera

• Cnidaria

Which class of invertebrates contains bivalves like clams and oysters?

• Arthropoda

• Echinodermata

• Annelida

• Mollusca

Which invertebrate class moves by using jointed legs?

• Porifera

• Arthropoda

• Cnidarai

• Mollusca

Which class of spineless animals don't usually move at all?

• Arthropoda

• Porifera

• Annelida

• Echinodermata

Jellyfish and earthworms​ both obtain oxygen ​ (a)   ​ ​

• through their skin
• filtering water through gills
• through an air tube

Burrowing into the ground is the typical method of defense for which class of invertebrates?

• Echinodermata

• Porifera

• Mollusca

• Annelida