Introduction to Animal Kingdom

An animal that does not have a backbone is a(n) _____________.

• vertebrae

• spineless

• invertebrate

During ____________ the body form of an organism changes as it grows.

• symmetry

• metamorphosis

• adaptation

Humans belong to the _____________ group.

• bilateral symmetry

• asymmetry

• radial symmetry

_____ are animals with backbones 

• Invertebrates
• Vertebrates

Invertebrates don't have internal skeletons made of bone. 

• True
• False

Invertebrates may have fluid-filled skeletons like jellyfish and worms. 

• True
• False

Hard outer coverings that protect the bodies of some animals without backbones are called _____. 

• invertebrates
• internal
• vertebrates
• exoskeletons

Invertebrates don't have _____ skeletons made of bones. 

• internal
• external
• vertebrates
• outer 

Common Characteristics of animals

• eukaryotic cells, heterotrophic, reproduce, have embryonic or larval states, most are motile

• prokaryotic cells, homeotrophic, reproduce, have eggs, most are motile

• eukaryotic cells, aquatic and land dwellers, plant eaters

• prokaryotic cells, parasitic, has an exoskeleton, are motile

Some animals do not move on their own.

• True

• False