1º E.S.O. - Invertebrates

Do invertebrates have backbone?

• Yes

• No

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

• Archnids

• 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

Animals that feed on small food particles or organisms suspended in water are:

• Deposit feeders

• Predators

• Scavengers

• Filter feeders

The skeleton in invertebrate animals is called:

• Backbone

• Internal skeleton

• Endoskeleton

• Exoskeleton

A characteristic of porifera is:

• They have organs

• Their body is full of pores

• They live in terrestrial environments

• They can move freely

The group of invertebrates that has stinging cells is:

• Arthropods

• Cnidaria

• Porifera

• Molluscs

The group of invertebrates that has no legs, so they move by using rigid, hair-like structures called setae is:

• Arthropods

• Annelids

• Porifera

• Molluscs