Use the Abbreviated Key to the Animal Kingdom below to key out this organism.  Select all steps that apply.    

Birds sometimes form partnerships with larger animals and use them as a source of insects and other items for food.

According to the pressure-flow hypothesis, sugars are pumped:

A condition in which an artery wall thickens as a result of the accumulation of fatty plaque; also known as “hardening of the arteries”:

A recording of electricity flowing through the heart:

A condition in which an artery wall thickens as a result of the accumulation of fatty plaque; also known as “hardening of the arteries”:

Inflammation of the inner lining of the heart is called _______________.

Surgical puncture to remove fluid around the heart: 

Inflammation of the inner lining of the heart is called _______________.

Very fast, random, inefficient and irregular contractions of the heart is called ______________. This is the most common type of arrhythmia.