Complex Animals Annelids and Arthropods

Which groups of invertebrates exist?

• Arthropods, molluscs and worms

• Arachnics, worms, molluscs and echinoderms

• Sponges, insects, worms, molluscs and arthropods

• Arthropods, coelenterates, porifera, annelids, echinoderms, molluscs

The spider is...

• Vertebrate

• Invertebrate

A leech is a

• Annelid

• Arthropod

• Echinoderm

• Porifera

Tags

NGSS.MS-LS4-2

Which of the following animals is an INVERTEBRATE?

• Cat

• Dog

• Spider

• Fish

What do all arthropods have?

• 6 legs

• 8 legs

• stiff legs

• jointed legs

For every human on earth there are about ____________ arthropods.

• 20

• 200

• 300 million

• 1 billion

What is the exoskeleton composed of?

• Calcium

• Chitin

• Lead

• Magnesium

What is an example of a worm that would belong to the Phylum Annelida?

• Earthworms

• Roundworms

• Flatworms

• Silkworms

Which of the following is a characteristic feature of annelids?

• Segmented bodies

• Exoskeleton

• Jointed legs

• Radial symmetry

Tags

NGSS.MS-LS4-2

What is the primary component of the exoskeleton in arthropods?

• Calcium carbonate

• Chitin

• Silica

• Cellulose