The main functions of an animal is to obtain food and oxygen, keep internal conditions stable, move and reproduce.

• True

• False

Keeping internal body conditions stable is:

• Homeostasis

• Warmth

• Temperature

Structures and behaviors that allow animals to perform their functions is:

• Adaptations

• Limbs

• Homeostasis

Animal teeth are an example of:

• Adaptations

• Limbs

• Homeostasis

Animals are classified in:

• Vertebrates and invertebrates

• Vertebrates and Fish

• Cold blooded and invertebrates

Animals with a backbone.

• Vertebrates

• Invertebrates

Animals without a backbone.

• Vertebrates

• Invertebrates

The animals within each phylum have uniquely organized body structure, called a:

• body plan

• body structure

• body changes

________________is a group of similar cells that performs a specific function.

• tissue

• organ

• muscles

Tissue combines to form:

• muscles and cells

• organs and organ systems

• cells and organs