Keeping internal body conditions stable is:

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

Animal teeth are an example of:

Animals are classified in:

Animals with a backbone.

Animals without a backbone.

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

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

Tissue combines to form:

The levels of structure are:

Cells -> Tissues -> ___________ -> Organ Systems

Groups of organs make up ________________

Organisms and objects have a balanced display of body parts called _________

If only one line of symmetry can be drawn to divide it into halves that are mirror images.

If many imaginary lines can be drawn through a central point to divide it into two mirror images.

Butterflies have:

Starfishes have:

Dogs have:

Sea urchins have: