Invertebrates 1ºESO

Do invertebrates have backbone?

• Yes

• No

• I don't know

Arthropods are:

• Molluscs, anelids, worms, insects

• Insects, arachnids, crustaceans, myriapods

• Worms, arachnids, crustaceans, echinoderms

• Echinoderms, spiders, crabs, insects

Molluscs that have 2 shells are:

• Gastropods

• Bivalves

• Arachnids

• Cephalopods

This group of invertebrates have articulated legs:

• Jellyfish

• Echinoderms

• Arthropods

• Worms

Molluscs are divided into:

• Arachnids, bivalves and sponges

• Worms, echinoderms and gastropods

• Gastropods, bivalves and cephalopods

• Insects, arachnids and crustaceans

Sponges belong to the group of:

• Cnidarians

• Porifera

• Crustaceans

• Insects

Lobsters, shrimp and crabs belong to the group of:

• Insects

• Myriapods

• Crustaceans

• Arachnids

Invertebrates that can produce silky thread (seda) belong to the group of:

• Insects

• Myriapods

• Crustaceans

• Arachnids

The water vascular system that helps echinoderms to feed and move formed by tube feet which have suction pads at the tip is called:

• Suction system

• Pedestrian system

• Ambulacral system

• Echinoderm system

A starfish belong to the group of:

• Arthropods

• Annelids

• Echinoderms

• Mollucs