Variation and Classification

Invertebrates do NOT have

• exoskeleton

• soft body

• internal skeleton

• eyes

2. Worms and slugs have...

• an exoskeleton

• a soft body

• an internal skeleton

• a spine

3. Arthropods are invertebrates with

• a soft body

• an exoskeleton

• many eyes

• bones

An octopus has

• feathers

• fur

• scales

• tentacles

Arthropods have three different parts

• head, thorax and abdomen

• head, shoulders and knees

• shell, legs and tail

What does invertebrate mean?

• Animals without a backbone

• Animals that change their form

• Animals with a backbone

• Animals that lay eggs

I have a soft-body, a hard shell, and live on land and water. What am I?

• Mollusk

• Arthropod

• Echinoderm

• Cnidarian

Between 90-95% of all animals on earth can be classified as _____.

• invertebrates

• vertebrates

• reptiles

• mammals

Mammals, fish, birds, reptiles and amphibians are all ___.

Which invertebrates have “arms” that extend outward from the middle of their bodies?

• Mollusks

• Echinoderms

• Arthropods

• Segmented Worms