Associate Level Material

Appendix E

Comparing Physiology Worksheet

In this assignment you describe and compare the circulatory, skeletal, and respiratory systems of sharks, iguanas, eagles, and humans. Answer each of the following questions in 25 to 50 words.

Circulatory System

• Shark

• How would you describe the structure and function of this animal's circulatory system? Include any unique characteristics. A shark's heart is a two-chambered S-shaped tube, small in proportion to body size located in the head region.

• How does this animal's circulatory system work?

The blood is pumped by the heart through the afferent bronchial arteries to capillaries in the gills, where the blood is oxygenated). The blood then flows through efferent bronchial arteries, through the tissues of the...