SCI7 Classification - Invertebrates features

Which of the following animals have segmented bodies, paired and jointed legs, and an exoskeleton?

• Leeches

• Octopuses

• Insects

• Sea jellies

Where are poriferans usually found?

• In the air

• Under the ground

• In water

• On land

What are the characteristics of cnidarians?

• Soft bodies with a protective shell

• Segmented, flat or round bodies

• Rough, spiny skin

• Soft, hollow bodies with tentacles

Which of the following animals have soft, long bodies and can be segmented, flat or round?

• Brittle star

• Tapeworms

• Centipedes

• Sea urchins

What is the main characteristic of echinoderms?

• Spongy bodies with holes

• Paired and jointed legs

• Rough, spiny skin

• Soft bodies with a protective shell

What is the main characteristic of molluscs?

• Segmented bodies

• Spongy bodies with holes

• Soft bodies with a protective shell

• Rough, spiny skin

Which of the following animals have spongy bodies with holes?

• Snails

• Sea cucumbers

• Glass sponges

• Scorpions

What are the main characteristics of nematodes, platyhelminths and annelids?

• Rough, spiny skin

• Soft, hollow bodies with tentacles

• Segmented bodies

• Soft, long bodies

Which of the following animals have rough, spiny skin and arms that radiate from the centre of the body?

• Insects

• Centipedes

• Sea urchins

• Oysters

What are the main characteristics of arthropods?

• Paired and jointed legs with an exoskeleton

• Segmented bodies

• Spongy bodies with holes

• Soft, long bodies