Invertebrates

These animals do not have backbones

• vertebrates
• invertebrates
• exoskeleton
• pores

Soft bodied invertebrate with a thick muscular foot for movement: some have shells

• molluks
• arthropod
• segmented worm
• sponge

What group has a long tube-like body with many sections and breathes through its skin?

• Segmented Worms
• Arthropods
• Echinoderms
• Sponges 

_______________ are animals that move very little and their bodies are full of holes.

• exoskeleton

• sponges

• arthropod

• sea urchins

______________ have soft tube like bodies and live in water, in soil, or even in other animals.

• tentacles

• Octopus

• sponges

• worms

Corals and jellies have arm-like parts called?

• sponges

• invertebrates

• exoskeleton

• tentacles

Snails, squids, octopuses, clams, oysters and scallops all belong to the same group called?

• vertebrates

• sea urchins

• arthropod

• mollusks

A(n) _____________ is an invertebrate that has jointed legs, a body with two or more sections, and a hard outer covering.

• Exoskeleton

• Vertebrate

• mammal

• arthropod

The hard outer covering of an arthropod is called a(n)?

• Skeleton

• Exoskeleton

• Skin

• roof

Most of the animals on Earth are?

• invertebrates

• vertebrates

• mammals

• birds